//! moment.js

;(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined'
		? (module.exports = factory())
		: typeof define === 'function' && define.amd
			? define(factory)
			: (global.moment = factory())
})(this, function () {
	'use strict'

	var hookCallback

	function hooks() {
		return hookCallback.apply(null, arguments)
	}

	// This is done to register the method called with moment()
	// without creating circular dependencies.
	function setHookCallback(callback) {
		hookCallback = callback
	}

	function isArray(input) {
		return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]'
	}

	function isObject(input) {
		// IE8 will treat undefined and null as object if it wasn't for
		// input != null
		return input != null && Object.prototype.toString.call(input) === '[object Object]'
	}

	function isObjectEmpty(obj) {
		if (Object.getOwnPropertyNames) {
			return Object.getOwnPropertyNames(obj).length === 0
		} else {
			var k
			for (k in obj) {
				if (obj.hasOwnProperty(k)) {
					return false
				}
			}
			return true
		}
	}

	function isUndefined(input) {
		return input === void 0
	}

	function isNumber(input) {
		return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]'
	}

	function isDate(input) {
		return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]'
	}

	function map(arr, fn) {
		var res = [],
			i
		for (i = 0; i < arr.length; ++i) {
			res.push(fn(arr[i], i))
		}
		return res
	}

	function hasOwnProp(a, b) {
		return Object.prototype.hasOwnProperty.call(a, b)
	}

	function extend(a, b) {
		for (var i in b) {
			if (hasOwnProp(b, i)) {
				a[i] = b[i]
			}
		}

		if (hasOwnProp(b, 'toString')) {
			a.toString = b.toString
		}

		if (hasOwnProp(b, 'valueOf')) {
			a.valueOf = b.valueOf
		}

		return a
	}

	function createUTC(input, format, locale, strict) {
		return createLocalOrUTC(input, format, locale, strict, true).utc()
	}

	function defaultParsingFlags() {
		// We need to deep clone this object.
		return {
			empty: false,
			unusedTokens: [],
			unusedInput: [],
			overflow: -2,
			charsLeftOver: 0,
			nullInput: false,
			invalidMonth: null,
			invalidFormat: false,
			userInvalidated: false,
			iso: false,
			parsedDateParts: [],
			meridiem: null,
			rfc2822: false,
			weekdayMismatch: false,
		}
	}

	function getParsingFlags(m) {
		if (m._pf == null) {
			m._pf = defaultParsingFlags()
		}
		return m._pf
	}

	var some
	if (Array.prototype.some) {
		some = Array.prototype.some
	} else {
		some = function (fun) {
			var t = Object(this)
			var len = t.length >>> 0

			for (var i = 0; i < len; i++) {
				if (i in t && fun.call(this, t[i], i, t)) {
					return true
				}
			}

			return false
		}
	}

	function isValid(m) {
		if (m._isValid == null) {
			var flags = getParsingFlags(m)
			var parsedParts = some.call(flags.parsedDateParts, function (i) {
				return i != null
			})
			var isNowValid =
				!isNaN(m._d.getTime()) &&
				flags.overflow < 0 &&
				!flags.empty &&
				!flags.invalidMonth &&
				!flags.invalidWeekday &&
				!flags.weekdayMismatch &&
				!flags.nullInput &&
				!flags.invalidFormat &&
				!flags.userInvalidated &&
				(!flags.meridiem || (flags.meridiem && parsedParts))

			if (m._strict) {
				isNowValid = isNowValid && flags.charsLeftOver === 0 && flags.unusedTokens.length === 0 && flags.bigHour === undefined
			}

			if (Object.isFrozen == null || !Object.isFrozen(m)) {
				m._isValid = isNowValid
			} else {
				return isNowValid
			}
		}
		return m._isValid
	}

	function createInvalid(flags) {
		var m = createUTC(NaN)
		if (flags != null) {
			extend(getParsingFlags(m), flags)
		} else {
			getParsingFlags(m).userInvalidated = true
		}

		return m
	}

	// Plugins that add properties should also add the key here (null value),
	// so we can properly clone ourselves.
	var momentProperties = (hooks.momentProperties = [])

	function copyConfig(to, from) {
		var i, prop, val

		if (!isUndefined(from._isAMomentObject)) {
			to._isAMomentObject = from._isAMomentObject
		}
		if (!isUndefined(from._i)) {
			to._i = from._i
		}
		if (!isUndefined(from._f)) {
			to._f = from._f
		}
		if (!isUndefined(from._l)) {
			to._l = from._l
		}
		if (!isUndefined(from._strict)) {
			to._strict = from._strict
		}
		if (!isUndefined(from._tzm)) {
			to._tzm = from._tzm
		}
		if (!isUndefined(from._isUTC)) {
			to._isUTC = from._isUTC
		}
		if (!isUndefined(from._offset)) {
			to._offset = from._offset
		}
		if (!isUndefined(from._pf)) {
			to._pf = getParsingFlags(from)
		}
		if (!isUndefined(from._locale)) {
			to._locale = from._locale
		}

		if (momentProperties.length > 0) {
			for (i = 0; i < momentProperties.length; i++) {
				prop = momentProperties[i]
				val = from[prop]
				if (!isUndefined(val)) {
					to[prop] = val
				}
			}
		}

		return to
	}

	var updateInProgress = false

	// Moment prototype object
	function Moment(config) {
		copyConfig(this, config)
		this._d = new Date(config._d != null ? config._d.getTime() : NaN)
		if (!this.isValid()) {
			this._d = new Date(NaN)
		}
		// Prevent infinite loop in case updateOffset creates new moment
		// objects.
		if (updateInProgress === false) {
			updateInProgress = true
			hooks.updateOffset(this)
			updateInProgress = false
		}
	}

	function isMoment(obj) {
		return obj instanceof Moment || (obj != null && obj._isAMomentObject != null)
	}

	function absFloor(number) {
		if (number < 0) {
			// -0 -> 0
			return Math.ceil(number) || 0
		} else {
			return Math.floor(number)
		}
	}

	function toInt(argumentForCoercion) {
		var coercedNumber = +argumentForCoercion,
			value = 0

		if (coercedNumber !== 0 && isFinite(coercedNumber)) {
			value = absFloor(coercedNumber)
		}

		return value
	}

	// compare two arrays, return the number of differences
	function compareArrays(array1, array2, dontConvert) {
		var len = Math.min(array1.length, array2.length),
			lengthDiff = Math.abs(array1.length - array2.length),
			diffs = 0,
			i
		for (i = 0; i < len; i++) {
			if ((dontConvert && array1[i] !== array2[i]) || (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
				diffs++
			}
		}
		return diffs + lengthDiff
	}

	function warn(msg) {
		if (hooks.suppressDeprecationWarnings === false && typeof console !== 'undefined' && console.warn) {
			console.warn('Deprecation warning: ' + msg)
		}
	}

	function deprecate(msg, fn) {
		var firstTime = true

		return extend(function () {
			if (hooks.deprecationHandler != null) {
				hooks.deprecationHandler(null, msg)
			}
			if (firstTime) {
				var args = []
				var arg
				for (var i = 0; i < arguments.length; i++) {
					arg = ''
					if (typeof arguments[i] === 'object') {
						arg += '\n[' + i + '] '
						for (var key in arguments[0]) {
							arg += key + ': ' + arguments[0][key] + ', '
						}
						arg = arg.slice(0, -2) // Remove trailing comma and space
					} else {
						arg = arguments[i]
					}
					args.push(arg)
				}
				warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + new Error().stack)
				firstTime = false
			}
			return fn.apply(this, arguments)
		}, fn)
	}

	var deprecations = {}

	function deprecateSimple(name, msg) {
		if (hooks.deprecationHandler != null) {
			hooks.deprecationHandler(name, msg)
		}
		if (!deprecations[name]) {
			warn(msg)
			deprecations[name] = true
		}
	}

	hooks.suppressDeprecationWarnings = false
	hooks.deprecationHandler = null

	function isFunction(input) {
		return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]'
	}

	function set(config) {
		var prop, i
		for (i in config) {
			prop = config[i]
			if (isFunction(prop)) {
				this[i] = prop
			} else {
				this['_' + i] = prop
			}
		}
		this._config = config
		// Lenient ordinal parsing accepts just a number in addition to
		// number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
		// TODO: Remove "ordinalParse" fallback in next major release.
		this._dayOfMonthOrdinalParseLenient = new RegExp((this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) + '|' + /\d{1,2}/.source)
	}

	function mergeConfigs(parentConfig, childConfig) {
		var res = extend({}, parentConfig),
			prop
		for (prop in childConfig) {
			if (hasOwnProp(childConfig, prop)) {
				if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
					res[prop] = {}
					extend(res[prop], parentConfig[prop])
					extend(res[prop], childConfig[prop])
				} else if (childConfig[prop] != null) {
					res[prop] = childConfig[prop]
				} else {
					delete res[prop]
				}
			}
		}
		for (prop in parentConfig) {
			if (hasOwnProp(parentConfig, prop) && !hasOwnProp(childConfig, prop) && isObject(parentConfig[prop])) {
				// make sure changes to properties don't modify parent config
				res[prop] = extend({}, res[prop])
			}
		}
		return res
	}

	function Locale(config) {
		if (config != null) {
			this.set(config)
		}
	}

	var keys

	if (Object.keys) {
		keys = Object.keys
	} else {
		keys = function (obj) {
			var i,
				res = []
			for (i in obj) {
				if (hasOwnProp(obj, i)) {
					res.push(i)
				}
			}
			return res
		}
	}

	var defaultCalendar = {
		sameDay: '[Today at] LT',
		nextDay: '[Tomorrow at] LT',
		nextWeek: 'dddd [at] LT',
		lastDay: '[Yesterday at] LT',
		lastWeek: '[Last] dddd [at] LT',
		sameElse: 'L',
	}

	function calendar(key, mom, now) {
		var output = this._calendar[key] || this._calendar['sameElse']
		return isFunction(output) ? output.call(mom, now) : output
	}

	var defaultLongDateFormat = {
		LTS: 'h:mm:ss A',
		LT: 'h:mm A',
		L: 'MM/DD/YYYY',
		LL: 'MMMM D, YYYY',
		LLL: 'MMMM D, YYYY h:mm A',
		LLLL: 'dddd, MMMM D, YYYY h:mm A',
	}

	function longDateFormat(key) {
		var format = this._longDateFormat[key],
			formatUpper = this._longDateFormat[key.toUpperCase()]

		if (format || !formatUpper) {
			return format
		}

		this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
			return val.slice(1)
		})

		return this._longDateFormat[key]
	}

	var defaultInvalidDate = 'Invalid date'

	function invalidDate() {
		return this._invalidDate
	}

	var defaultOrdinal = '%d'
	var defaultDayOfMonthOrdinalParse = /\d{1,2}/

	function ordinal(number) {
		return this._ordinal.replace('%d', number)
	}

	var defaultRelativeTime = {
		future: 'in %s',
		past: '%s ago',
		s: 'a few seconds',
		ss: '%d seconds',
		m: 'a minute',
		mm: '%d minutes',
		h: 'an hour',
		hh: '%d hours',
		d: 'a day',
		dd: '%d days',
		M: 'a month',
		MM: '%d months',
		y: 'a year',
		yy: '%d years',
	}

	function relativeTime(number, withoutSuffix, string, isFuture) {
		var output = this._relativeTime[string]
		return isFunction(output) ? output(number, withoutSuffix, string, isFuture) : output.replace(/%d/i, number)
	}

	function pastFuture(diff, output) {
		var format = this._relativeTime[diff > 0 ? 'future' : 'past']
		return isFunction(format) ? format(output) : format.replace(/%s/i, output)
	}

	var aliases = {}

	function addUnitAlias(unit, shorthand) {
		var lowerCase = unit.toLowerCase()
		aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit
	}

	function normalizeUnits(units) {
		return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined
	}

	function normalizeObjectUnits(inputObject) {
		var normalizedInput = {},
			normalizedProp,
			prop

		for (prop in inputObject) {
			if (hasOwnProp(inputObject, prop)) {
				normalizedProp = normalizeUnits(prop)
				if (normalizedProp) {
					normalizedInput[normalizedProp] = inputObject[prop]
				}
			}
		}

		return normalizedInput
	}

	var priorities = {}

	function addUnitPriority(unit, priority) {
		priorities[unit] = priority
	}

	function getPrioritizedUnits(unitsObj) {
		var units = []
		for (var u in unitsObj) {
			units.push({ unit: u, priority: priorities[u] })
		}
		units.sort(function (a, b) {
			return a.priority - b.priority
		})
		return units
	}

	function zeroFill(number, targetLength, forceSign) {
		var absNumber = '' + Math.abs(number),
			zerosToFill = targetLength - absNumber.length,
			sign = number >= 0
		return (sign ? (forceSign ? '+' : '') : '-') + Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber
	}

	var formattingTokens =
		/(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g

	var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g

	var formatFunctions = {}

	var formatTokenFunctions = {}

	// token:    'M'
	// padded:   ['MM', 2]
	// ordinal:  'Mo'
	// callback: function () { this.month() + 1 }
	function addFormatToken(token, padded, ordinal, callback) {
		var func = callback
		if (typeof callback === 'string') {
			func = function () {
				return this[callback]()
			}
		}
		if (token) {
			formatTokenFunctions[token] = func
		}
		if (padded) {
			formatTokenFunctions[padded[0]] = function () {
				return zeroFill(func.apply(this, arguments), padded[1], padded[2])
			}
		}
		if (ordinal) {
			formatTokenFunctions[ordinal] = function () {
				return this.localeData().ordinal(func.apply(this, arguments), token)
			}
		}
	}

	function removeFormattingTokens(input) {
		if (input.match(/\[[\s\S]/)) {
			return input.replace(/^\[|\]$/g, '')
		}
		return input.replace(/\\/g, '')
	}

	function makeFormatFunction(format) {
		var array = format.match(formattingTokens),
			i,
			length

		for (i = 0, length = array.length; i < length; i++) {
			if (formatTokenFunctions[array[i]]) {
				array[i] = formatTokenFunctions[array[i]]
			} else {
				array[i] = removeFormattingTokens(array[i])
			}
		}

		return function (mom) {
			var output = '',
				i
			for (i = 0; i < length; i++) {
				output += isFunction(array[i]) ? array[i].call(mom, format) : array[i]
			}
			return output
		}
	}

	// format date using native date object
	function formatMoment(m, format) {
		if (!m.isValid()) {
			return m.localeData().invalidDate()
		}

		format = expandFormat(format, m.localeData())
		formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format)

		return formatFunctions[format](m)
	}

	function expandFormat(format, locale) {
		var i = 5

		function replaceLongDateFormatTokens(input) {
			return locale.longDateFormat(input) || input
		}

		localFormattingTokens.lastIndex = 0
		while (i >= 0 && localFormattingTokens.test(format)) {
			format = format.replace(localFormattingTokens, replaceLongDateFormatTokens)
			localFormattingTokens.lastIndex = 0
			i -= 1
		}

		return format
	}

	var match1 = /\d/ //       0 - 9
	var match2 = /\d\d/ //      00 - 99
	var match3 = /\d{3}/ //     000 - 999
	var match4 = /\d{4}/ //    0000 - 9999
	var match6 = /[+-]?\d{6}/ // -999999 - 999999
	var match1to2 = /\d\d?/ //       0 - 99
	var match3to4 = /\d\d\d\d?/ //     999 - 9999
	var match5to6 = /\d\d\d\d\d\d?/ //   99999 - 999999
	var match1to3 = /\d{1,3}/ //       0 - 999
	var match1to4 = /\d{1,4}/ //       0 - 9999
	var match1to6 = /[+-]?\d{1,6}/ // -999999 - 999999

	var matchUnsigned = /\d+/ //       0 - inf
	var matchSigned = /[+-]?\d+/ //    -inf - inf

	var matchOffset = /Z|[+-]\d\d:?\d\d/gi // +00:00 -00:00 +0000 -0000 or Z
	var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi // +00 -00 +00:00 -00:00 +0000 -0000 or Z

	var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/ // 123456789 123456789.123

	// any word (or two) characters or numbers including two/three word month in arabic.
	// includes scottish gaelic two word and hyphenated months
	var matchWord =
		/[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i

	var regexes = {}

	function addRegexToken(token, regex, strictRegex) {
		regexes[token] = isFunction(regex)
			? regex
			: function (isStrict, localeData) {
					return isStrict && strictRegex ? strictRegex : regex
				}
	}

	function getParseRegexForToken(token, config) {
		if (!hasOwnProp(regexes, token)) {
			return new RegExp(unescapeFormat(token))
		}

		return regexes[token](config._strict, config._locale)
	}

	// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
	function unescapeFormat(s) {
		return regexEscape(
			s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
				return p1 || p2 || p3 || p4
			})
		)
	}

	function regexEscape(s) {
		return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&')
	}

	var tokens = {}

	function addParseToken(token, callback) {
		var i,
			func = callback
		if (typeof token === 'string') {
			token = [token]
		}
		if (isNumber(callback)) {
			func = function (input, array) {
				array[callback] = toInt(input)
			}
		}
		for (i = 0; i < token.length; i++) {
			tokens[token[i]] = func
		}
	}

	function addWeekParseToken(token, callback) {
		addParseToken(token, function (input, array, config, token) {
			config._w = config._w || {}
			callback(input, config._w, config, token)
		})
	}

	function addTimeToArrayFromToken(token, input, config) {
		if (input != null && hasOwnProp(tokens, token)) {
			tokens[token](input, config._a, config, token)
		}
	}

	var YEAR = 0
	var MONTH = 1
	var DATE = 2
	var HOUR = 3
	var MINUTE = 4
	var SECOND = 5
	var MILLISECOND = 6
	var WEEK = 7
	var WEEKDAY = 8

	// FORMATTING

	addFormatToken('Y', 0, 0, function () {
		var y = this.year()
		return y <= 9999 ? '' + y : '+' + y
	})

	addFormatToken(0, ['YY', 2], 0, function () {
		return this.year() % 100
	})

	addFormatToken(0, ['YYYY', 4], 0, 'year')
	addFormatToken(0, ['YYYYY', 5], 0, 'year')
	addFormatToken(0, ['YYYYYY', 6, true], 0, 'year')

	// ALIASES

	addUnitAlias('year', 'y')

	// PRIORITIES

	addUnitPriority('year', 1)

	// PARSING

	addRegexToken('Y', matchSigned)
	addRegexToken('YY', match1to2, match2)
	addRegexToken('YYYY', match1to4, match4)
	addRegexToken('YYYYY', match1to6, match6)
	addRegexToken('YYYYYY', match1to6, match6)

	addParseToken(['YYYYY', 'YYYYYY'], YEAR)
	addParseToken('YYYY', function (input, array) {
		array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input)
	})
	addParseToken('YY', function (input, array) {
		array[YEAR] = hooks.parseTwoDigitYear(input)
	})
	addParseToken('Y', function (input, array) {
		array[YEAR] = parseInt(input, 10)
	})

	// HELPERS

	function daysInYear(year) {
		return isLeapYear(year) ? 366 : 365
	}

	function isLeapYear(year) {
		return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0
	}

	// HOOKS

	hooks.parseTwoDigitYear = function (input) {
		return toInt(input) + (toInt(input) > 68 ? 1900 : 2000)
	}

	// MOMENTS

	var getSetYear = makeGetSet('FullYear', true)

	function getIsLeapYear() {
		return isLeapYear(this.year())
	}

	function makeGetSet(unit, keepTime) {
		return function (value) {
			if (value != null) {
				set$1(this, unit, value)
				hooks.updateOffset(this, keepTime)
				return this
			} else {
				return get(this, unit)
			}
		}
	}

	function get(mom, unit) {
		return mom.isValid() ? mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN
	}

	function set$1(mom, unit, value) {
		if (mom.isValid() && !isNaN(value)) {
			if (unit === 'FullYear' && isLeapYear(mom.year()) && mom.month() === 1 && mom.date() === 29) {
				mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value, mom.month(), daysInMonth(value, mom.month()))
			} else {
				mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value)
			}
		}
	}

	// MOMENTS

	function stringGet(units) {
		units = normalizeUnits(units)
		if (isFunction(this[units])) {
			return this[units]()
		}
		return this
	}

	function stringSet(units, value) {
		if (typeof units === 'object') {
			units = normalizeObjectUnits(units)
			var prioritized = getPrioritizedUnits(units)
			for (var i = 0; i < prioritized.length; i++) {
				this[prioritized[i].unit](units[prioritized[i].unit])
			}
		} else {
			units = normalizeUnits(units)
			if (isFunction(this[units])) {
				return this[units](value)
			}
		}
		return this
	}

	function mod(n, x) {
		return ((n % x) + x) % x
	}

	var indexOf

	if (Array.prototype.indexOf) {
		indexOf = Array.prototype.indexOf
	} else {
		indexOf = function (o) {
			// I know
			var i
			for (i = 0; i < this.length; ++i) {
				if (this[i] === o) {
					return i
				}
			}
			return -1
		}
	}

	function daysInMonth(year, month) {
		if (isNaN(year) || isNaN(month)) {
			return NaN
		}
		var modMonth = mod(month, 12)
		year += (month - modMonth) / 12
		return modMonth === 1 ? (isLeapYear(year) ? 29 : 28) : 31 - ((modMonth % 7) % 2)
	}

	// FORMATTING

	addFormatToken('M', ['MM', 2], 'Mo', function () {
		return this.month() + 1
	})

	addFormatToken('MMM', 0, 0, function (format) {
		return this.localeData().monthsShort(this, format)
	})

	addFormatToken('MMMM', 0, 0, function (format) {
		return this.localeData().months(this, format)
	})

	// ALIASES

	addUnitAlias('month', 'M')

	// PRIORITY

	addUnitPriority('month', 8)

	// PARSING

	addRegexToken('M', match1to2)
	addRegexToken('MM', match1to2, match2)
	addRegexToken('MMM', function (isStrict, locale) {
		return locale.monthsShortRegex(isStrict)
	})
	addRegexToken('MMMM', function (isStrict, locale) {
		return locale.monthsRegex(isStrict)
	})

	addParseToken(['M', 'MM'], function (input, array) {
		array[MONTH] = toInt(input) - 1
	})

	addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
		var month = config._locale.monthsParse(input, token, config._strict)
		// if we didn't find a month name, mark the date as invalid.
		if (month != null) {
			array[MONTH] = month
		} else {
			getParsingFlags(config).invalidMonth = input
		}
	})

	// LOCALES

	var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/
	var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_')
	function localeMonths(m, format) {
		if (!m) {
			return isArray(this._months) ? this._months : this._months['standalone']
		}
		return isArray(this._months)
			? this._months[m.month()]
			: this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()]
	}

	var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_')
	function localeMonthsShort(m, format) {
		if (!m) {
			return isArray(this._monthsShort) ? this._monthsShort : this._monthsShort['standalone']
		}
		return isArray(this._monthsShort)
			? this._monthsShort[m.month()]
			: this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()]
	}

	function handleStrictParse(monthName, format, strict) {
		var i,
			ii,
			mom,
			llc = monthName.toLocaleLowerCase()
		if (!this._monthsParse) {
			// this is not used
			this._monthsParse = []
			this._longMonthsParse = []
			this._shortMonthsParse = []
			for (i = 0; i < 12; ++i) {
				mom = createUTC([2000, i])
				this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase()
				this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase()
			}
		}

		if (strict) {
			if (format === 'MMM') {
				ii = indexOf.call(this._shortMonthsParse, llc)
				return ii !== -1 ? ii : null
			} else {
				ii = indexOf.call(this._longMonthsParse, llc)
				return ii !== -1 ? ii : null
			}
		} else {
			if (format === 'MMM') {
				ii = indexOf.call(this._shortMonthsParse, llc)
				if (ii !== -1) {
					return ii
				}
				ii = indexOf.call(this._longMonthsParse, llc)
				return ii !== -1 ? ii : null
			} else {
				ii = indexOf.call(this._longMonthsParse, llc)
				if (ii !== -1) {
					return ii
				}
				ii = indexOf.call(this._shortMonthsParse, llc)
				return ii !== -1 ? ii : null
			}
		}
	}

	function localeMonthsParse(monthName, format, strict) {
		var i, mom, regex

		if (this._monthsParseExact) {
			return handleStrictParse.call(this, monthName, format, strict)
		}

		if (!this._monthsParse) {
			this._monthsParse = []
			this._longMonthsParse = []
			this._shortMonthsParse = []
		}

		// TODO: add sorting
		// Sorting makes sure if one month (or abbr) is a prefix of another
		// see sorting in computeMonthsParse
		for (i = 0; i < 12; i++) {
			// make the regex if we don't have it already
			mom = createUTC([2000, i])
			if (strict && !this._longMonthsParse[i]) {
				this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i')
				this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i')
			}
			if (!strict && !this._monthsParse[i]) {
				regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '')
				this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i')
			}
			// test the regex
			if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
				return i
			} else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
				return i
			} else if (!strict && this._monthsParse[i].test(monthName)) {
				return i
			}
		}
	}

	// MOMENTS

	function setMonth(mom, value) {
		var dayOfMonth

		if (!mom.isValid()) {
			// No op
			return mom
		}

		if (typeof value === 'string') {
			if (/^\d+$/.test(value)) {
				value = toInt(value)
			} else {
				value = mom.localeData().monthsParse(value)
				// TODO: Another silent failure?
				if (!isNumber(value)) {
					return mom
				}
			}
		}

		dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value))
		mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth)
		return mom
	}

	function getSetMonth(value) {
		if (value != null) {
			setMonth(this, value)
			hooks.updateOffset(this, true)
			return this
		} else {
			return get(this, 'Month')
		}
	}

	function getDaysInMonth() {
		return daysInMonth(this.year(), this.month())
	}

	var defaultMonthsShortRegex = matchWord
	function monthsShortRegex(isStrict) {
		if (this._monthsParseExact) {
			if (!hasOwnProp(this, '_monthsRegex')) {
				computeMonthsParse.call(this)
			}
			if (isStrict) {
				return this._monthsShortStrictRegex
			} else {
				return this._monthsShortRegex
			}
		} else {
			if (!hasOwnProp(this, '_monthsShortRegex')) {
				this._monthsShortRegex = defaultMonthsShortRegex
			}
			return this._monthsShortStrictRegex && isStrict ? this._monthsShortStrictRegex : this._monthsShortRegex
		}
	}

	var defaultMonthsRegex = matchWord
	function monthsRegex(isStrict) {
		if (this._monthsParseExact) {
			if (!hasOwnProp(this, '_monthsRegex')) {
				computeMonthsParse.call(this)
			}
			if (isStrict) {
				return this._monthsStrictRegex
			} else {
				return this._monthsRegex
			}
		} else {
			if (!hasOwnProp(this, '_monthsRegex')) {
				this._monthsRegex = defaultMonthsRegex
			}
			return this._monthsStrictRegex && isStrict ? this._monthsStrictRegex : this._monthsRegex
		}
	}

	function computeMonthsParse() {
		function cmpLenRev(a, b) {
			return b.length - a.length
		}

		var shortPieces = [],
			longPieces = [],
			mixedPieces = [],
			i,
			mom
		for (i = 0; i < 12; i++) {
			// make the regex if we don't have it already
			mom = createUTC([2000, i])
			shortPieces.push(this.monthsShort(mom, ''))
			longPieces.push(this.months(mom, ''))
			mixedPieces.push(this.months(mom, ''))
			mixedPieces.push(this.monthsShort(mom, ''))
		}
		// Sorting makes sure if one month (or abbr) is a prefix of another it
		// will match the longer piece.
		shortPieces.sort(cmpLenRev)
		longPieces.sort(cmpLenRev)
		mixedPieces.sort(cmpLenRev)
		for (i = 0; i < 12; i++) {
			shortPieces[i] = regexEscape(shortPieces[i])
			longPieces[i] = regexEscape(longPieces[i])
		}
		for (i = 0; i < 24; i++) {
			mixedPieces[i] = regexEscape(mixedPieces[i])
		}

		this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i')
		this._monthsShortRegex = this._monthsRegex
		this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i')
		this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i')
	}

	function createDate(y, m, d, h, M, s, ms) {
		// can't just apply() to create a date:
		// https://stackoverflow.com/q/181348
		var date
		// the date constructor remaps years 0-99 to 1900-1999
		if (y < 100 && y >= 0) {
			// preserve leap years using a full 400 year cycle, then reset
			date = new Date(y + 400, m, d, h, M, s, ms)
			if (isFinite(date.getFullYear())) {
				date.setFullYear(y)
			}
		} else {
			date = new Date(y, m, d, h, M, s, ms)
		}

		return date
	}

	function createUTCDate(y) {
		var date
		// the Date.UTC function remaps years 0-99 to 1900-1999
		if (y < 100 && y >= 0) {
			var args = Array.prototype.slice.call(arguments)
			// preserve leap years using a full 400 year cycle, then reset
			args[0] = y + 400
			date = new Date(Date.UTC.apply(null, args))
			if (isFinite(date.getUTCFullYear())) {
				date.setUTCFullYear(y)
			}
		} else {
			date = new Date(Date.UTC.apply(null, arguments))
		}

		return date
	}

	// start-of-first-week - start-of-year
	function firstWeekOffset(year, dow, doy) {
		var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
			fwd = 7 + dow - doy,
			// first-week day local weekday -- which local weekday is fwd
			fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7

		return -fwdlw + fwd - 1
	}

	// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
	function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
		var localWeekday = (7 + weekday - dow) % 7,
			weekOffset = firstWeekOffset(year, dow, doy),
			dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
			resYear,
			resDayOfYear

		if (dayOfYear <= 0) {
			resYear = year - 1
			resDayOfYear = daysInYear(resYear) + dayOfYear
		} else if (dayOfYear > daysInYear(year)) {
			resYear = year + 1
			resDayOfYear = dayOfYear - daysInYear(year)
		} else {
			resYear = year
			resDayOfYear = dayOfYear
		}

		return {
			year: resYear,
			dayOfYear: resDayOfYear,
		}
	}

	function weekOfYear(mom, dow, doy) {
		var weekOffset = firstWeekOffset(mom.year(), dow, doy),
			week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
			resWeek,
			resYear

		if (week < 1) {
			resYear = mom.year() - 1
			resWeek = week + weeksInYear(resYear, dow, doy)
		} else if (week > weeksInYear(mom.year(), dow, doy)) {
			resWeek = week - weeksInYear(mom.year(), dow, doy)
			resYear = mom.year() + 1
		} else {
			resYear = mom.year()
			resWeek = week
		}

		return {
			week: resWeek,
			year: resYear,
		}
	}

	function weeksInYear(year, dow, doy) {
		var weekOffset = firstWeekOffset(year, dow, doy),
			weekOffsetNext = firstWeekOffset(year + 1, dow, doy)
		return (daysInYear(year) - weekOffset + weekOffsetNext) / 7
	}

	// FORMATTING

	addFormatToken('w', ['ww', 2], 'wo', 'week')
	addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek')

	// ALIASES

	addUnitAlias('week', 'w')
	addUnitAlias('isoWeek', 'W')

	// PRIORITIES

	addUnitPriority('week', 5)
	addUnitPriority('isoWeek', 5)

	// PARSING

	addRegexToken('w', match1to2)
	addRegexToken('ww', match1to2, match2)
	addRegexToken('W', match1to2)
	addRegexToken('WW', match1to2, match2)

	addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
		week[token.substr(0, 1)] = toInt(input)
	})

	// HELPERS

	// LOCALES

	function localeWeek(mom) {
		return weekOfYear(mom, this._week.dow, this._week.doy).week
	}

	var defaultLocaleWeek = {
		dow: 0, // Sunday is the first day of the week.
		doy: 6, // The week that contains Jan 6th is the first week of the year.
	}

	function localeFirstDayOfWeek() {
		return this._week.dow
	}

	function localeFirstDayOfYear() {
		return this._week.doy
	}

	// MOMENTS

	function getSetWeek(input) {
		var week = this.localeData().week(this)
		return input == null ? week : this.add((input - week) * 7, 'd')
	}

	function getSetISOWeek(input) {
		var week = weekOfYear(this, 1, 4).week
		return input == null ? week : this.add((input - week) * 7, 'd')
	}

	// FORMATTING

	addFormatToken('d', 0, 'do', 'day')

	addFormatToken('dd', 0, 0, function (format) {
		return this.localeData().weekdaysMin(this, format)
	})

	addFormatToken('ddd', 0, 0, function (format) {
		return this.localeData().weekdaysShort(this, format)
	})

	addFormatToken('dddd', 0, 0, function (format) {
		return this.localeData().weekdays(this, format)
	})

	addFormatToken('e', 0, 0, 'weekday')
	addFormatToken('E', 0, 0, 'isoWeekday')

	// ALIASES

	addUnitAlias('day', 'd')
	addUnitAlias('weekday', 'e')
	addUnitAlias('isoWeekday', 'E')

	// PRIORITY
	addUnitPriority('day', 11)
	addUnitPriority('weekday', 11)
	addUnitPriority('isoWeekday', 11)

	// PARSING

	addRegexToken('d', match1to2)
	addRegexToken('e', match1to2)
	addRegexToken('E', match1to2)
	addRegexToken('dd', function (isStrict, locale) {
		return locale.weekdaysMinRegex(isStrict)
	})
	addRegexToken('ddd', function (isStrict, locale) {
		return locale.weekdaysShortRegex(isStrict)
	})
	addRegexToken('dddd', function (isStrict, locale) {
		return locale.weekdaysRegex(isStrict)
	})

	addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
		var weekday = config._locale.weekdaysParse(input, token, config._strict)
		// if we didn't get a weekday name, mark the date as invalid
		if (weekday != null) {
			week.d = weekday
		} else {
			getParsingFlags(config).invalidWeekday = input
		}
	})

	addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
		week[token] = toInt(input)
	})

	// HELPERS

	function parseWeekday(input, locale) {
		if (typeof input !== 'string') {
			return input
		}

		if (!isNaN(input)) {
			return parseInt(input, 10)
		}

		input = locale.weekdaysParse(input)
		if (typeof input === 'number') {
			return input
		}

		return null
	}

	function parseIsoWeekday(input, locale) {
		if (typeof input === 'string') {
			return locale.weekdaysParse(input) % 7 || 7
		}
		return isNaN(input) ? null : input
	}

	// LOCALES
	function shiftWeekdays(ws, n) {
		return ws.slice(n, 7).concat(ws.slice(0, n))
	}

	var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_')
	function localeWeekdays(m, format) {
		var weekdays = isArray(this._weekdays)
			? this._weekdays
			: this._weekdays[m && m !== true && this._weekdays.isFormat.test(format) ? 'format' : 'standalone']
		return m === true ? shiftWeekdays(weekdays, this._week.dow) : m ? weekdays[m.day()] : weekdays
	}

	var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_')
	function localeWeekdaysShort(m) {
		return m === true ? shiftWeekdays(this._weekdaysShort, this._week.dow) : m ? this._weekdaysShort[m.day()] : this._weekdaysShort
	}

	var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_')
	function localeWeekdaysMin(m) {
		return m === true ? shiftWeekdays(this._weekdaysMin, this._week.dow) : m ? this._weekdaysMin[m.day()] : this._weekdaysMin
	}

	function handleStrictParse$1(weekdayName, format, strict) {
		var i,
			ii,
			mom,
			llc = weekdayName.toLocaleLowerCase()
		if (!this._weekdaysParse) {
			this._weekdaysParse = []
			this._shortWeekdaysParse = []
			this._minWeekdaysParse = []

			for (i = 0; i < 7; ++i) {
				mom = createUTC([2000, 1]).day(i)
				this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase()
				this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase()
				this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase()
			}
		}

		if (strict) {
			if (format === 'dddd') {
				ii = indexOf.call(this._weekdaysParse, llc)
				return ii !== -1 ? ii : null
			} else if (format === 'ddd') {
				ii = indexOf.call(this._shortWeekdaysParse, llc)
				return ii !== -1 ? ii : null
			} else {
				ii = indexOf.call(this._minWeekdaysParse, llc)
				return ii !== -1 ? ii : null
			}
		} else {
			if (format === 'dddd') {
				ii = indexOf.call(this._weekdaysParse, llc)
				if (ii !== -1) {
					return ii
				}
				ii = indexOf.call(this._shortWeekdaysParse, llc)
				if (ii !== -1) {
					return ii
				}
				ii = indexOf.call(this._minWeekdaysParse, llc)
				return ii !== -1 ? ii : null
			} else if (format === 'ddd') {
				ii = indexOf.call(this._shortWeekdaysParse, llc)
				if (ii !== -1) {
					return ii
				}
				ii = indexOf.call(this._weekdaysParse, llc)
				if (ii !== -1) {
					return ii
				}
				ii = indexOf.call(this._minWeekdaysParse, llc)
				return ii !== -1 ? ii : null
			} else {
				ii = indexOf.call(this._minWeekdaysParse, llc)
				if (ii !== -1) {
					return ii
				}
				ii = indexOf.call(this._weekdaysParse, llc)
				if (ii !== -1) {
					return ii
				}
				ii = indexOf.call(this._shortWeekdaysParse, llc)
				return ii !== -1 ? ii : null
			}
		}
	}

	function localeWeekdaysParse(weekdayName, format, strict) {
		var i, mom, regex

		if (this._weekdaysParseExact) {
			return handleStrictParse$1.call(this, weekdayName, format, strict)
		}

		if (!this._weekdaysParse) {
			this._weekdaysParse = []
			this._minWeekdaysParse = []
			this._shortWeekdaysParse = []
			this._fullWeekdaysParse = []
		}

		for (i = 0; i < 7; i++) {
			// make the regex if we don't have it already

			mom = createUTC([2000, 1]).day(i)
			if (strict && !this._fullWeekdaysParse[i]) {
				this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\\.?') + '$', 'i')
				this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$', 'i')
				this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$', 'i')
			}
			if (!this._weekdaysParse[i]) {
				regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '')
				this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i')
			}
			// test the regex
			if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
				return i
			} else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
				return i
			} else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
				return i
			} else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
				return i
			}
		}
	}

	// MOMENTS

	function getSetDayOfWeek(input) {
		if (!this.isValid()) {
			return input != null ? this : NaN
		}
		var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay()
		if (input != null) {
			input = parseWeekday(input, this.localeData())
			return this.add(input - day, 'd')
		} else {
			return day
		}
	}

	function getSetLocaleDayOfWeek(input) {
		if (!this.isValid()) {
			return input != null ? this : NaN
		}
		var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7
		return input == null ? weekday : this.add(input - weekday, 'd')
	}

	function getSetISODayOfWeek(input) {
		if (!this.isValid()) {
			return input != null ? this : NaN
		}

		// behaves the same as moment#day except
		// as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
		// as a setter, sunday should belong to the previous week.

		if (input != null) {
			var weekday = parseIsoWeekday(input, this.localeData())
			return this.day(this.day() % 7 ? weekday : weekday - 7)
		} else {
			return this.day() || 7
		}
	}

	var defaultWeekdaysRegex = matchWord
	function weekdaysRegex(isStrict) {
		if (this._weekdaysParseExact) {
			if (!hasOwnProp(this, '_weekdaysRegex')) {
				computeWeekdaysParse.call(this)
			}
			if (isStrict) {
				return this._weekdaysStrictRegex
			} else {
				return this._weekdaysRegex
			}
		} else {
			if (!hasOwnProp(this, '_weekdaysRegex')) {
				this._weekdaysRegex = defaultWeekdaysRegex
			}
			return this._weekdaysStrictRegex && isStrict ? this._weekdaysStrictRegex : this._weekdaysRegex
		}
	}

	var defaultWeekdaysShortRegex = matchWord
	function weekdaysShortRegex(isStrict) {
		if (this._weekdaysParseExact) {
			if (!hasOwnProp(this, '_weekdaysRegex')) {
				computeWeekdaysParse.call(this)
			}
			if (isStrict) {
				return this._weekdaysShortStrictRegex
			} else {
				return this._weekdaysShortRegex
			}
		} else {
			if (!hasOwnProp(this, '_weekdaysShortRegex')) {
				this._weekdaysShortRegex = defaultWeekdaysShortRegex
			}
			return this._weekdaysShortStrictRegex && isStrict ? this._weekdaysShortStrictRegex : this._weekdaysShortRegex
		}
	}

	var defaultWeekdaysMinRegex = matchWord
	function weekdaysMinRegex(isStrict) {
		if (this._weekdaysParseExact) {
			if (!hasOwnProp(this, '_weekdaysRegex')) {
				computeWeekdaysParse.call(this)
			}
			if (isStrict) {
				return this._weekdaysMinStrictRegex
			} else {
				return this._weekdaysMinRegex
			}
		} else {
			if (!hasOwnProp(this, '_weekdaysMinRegex')) {
				this._weekdaysMinRegex = defaultWeekdaysMinRegex
			}
			return this._weekdaysMinStrictRegex && isStrict ? this._weekdaysMinStrictRegex : this._weekdaysMinRegex
		}
	}

	function computeWeekdaysParse() {
		function cmpLenRev(a, b) {
			return b.length - a.length
		}

		var minPieces = [],
			shortPieces = [],
			longPieces = [],
			mixedPieces = [],
			i,
			mom,
			minp,
			shortp,
			longp
		for (i = 0; i < 7; i++) {
			// make the regex if we don't have it already
			mom = createUTC([2000, 1]).day(i)
			minp = this.weekdaysMin(mom, '')
			shortp = this.weekdaysShort(mom, '')
			longp = this.weekdays(mom, '')
			minPieces.push(minp)
			shortPieces.push(shortp)
			longPieces.push(longp)
			mixedPieces.push(minp)
			mixedPieces.push(shortp)
			mixedPieces.push(longp)
		}
		// Sorting makes sure if one weekday (or abbr) is a prefix of another it
		// will match the longer piece.
		minPieces.sort(cmpLenRev)
		shortPieces.sort(cmpLenRev)
		longPieces.sort(cmpLenRev)
		mixedPieces.sort(cmpLenRev)
		for (i = 0; i < 7; i++) {
			shortPieces[i] = regexEscape(shortPieces[i])
			longPieces[i] = regexEscape(longPieces[i])
			mixedPieces[i] = regexEscape(mixedPieces[i])
		}

		this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i')
		this._weekdaysShortRegex = this._weekdaysRegex
		this._weekdaysMinRegex = this._weekdaysRegex

		this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i')
		this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i')
		this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i')
	}

	// FORMATTING

	function hFormat() {
		return this.hours() % 12 || 12
	}

	function kFormat() {
		return this.hours() || 24
	}

	addFormatToken('H', ['HH', 2], 0, 'hour')
	addFormatToken('h', ['hh', 2], 0, hFormat)
	addFormatToken('k', ['kk', 2], 0, kFormat)

	addFormatToken('hmm', 0, 0, function () {
		return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2)
	})

	addFormatToken('hmmss', 0, 0, function () {
		return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) + zeroFill(this.seconds(), 2)
	})

	addFormatToken('Hmm', 0, 0, function () {
		return '' + this.hours() + zeroFill(this.minutes(), 2)
	})

	addFormatToken('Hmmss', 0, 0, function () {
		return '' + this.hours() + zeroFill(this.minutes(), 2) + zeroFill(this.seconds(), 2)
	})

	function meridiem(token, lowercase) {
		addFormatToken(token, 0, 0, function () {
			return this.localeData().meridiem(this.hours(), this.minutes(), lowercase)
		})
	}

	meridiem('a', true)
	meridiem('A', false)

	// ALIASES

	addUnitAlias('hour', 'h')

	// PRIORITY
	addUnitPriority('hour', 13)

	// PARSING

	function matchMeridiem(isStrict, locale) {
		return locale._meridiemParse
	}

	addRegexToken('a', matchMeridiem)
	addRegexToken('A', matchMeridiem)
	addRegexToken('H', match1to2)
	addRegexToken('h', match1to2)
	addRegexToken('k', match1to2)
	addRegexToken('HH', match1to2, match2)
	addRegexToken('hh', match1to2, match2)
	addRegexToken('kk', match1to2, match2)

	addRegexToken('hmm', match3to4)
	addRegexToken('hmmss', match5to6)
	addRegexToken('Hmm', match3to4)
	addRegexToken('Hmmss', match5to6)

	addParseToken(['H', 'HH'], HOUR)
	addParseToken(['k', 'kk'], function (input, array, config) {
		var kInput = toInt(input)
		array[HOUR] = kInput === 24 ? 0 : kInput
	})
	addParseToken(['a', 'A'], function (input, array, config) {
		config._isPm = config._locale.isPM(input)
		config._meridiem = input
	})
	addParseToken(['h', 'hh'], function (input, array, config) {
		array[HOUR] = toInt(input)
		getParsingFlags(config).bigHour = true
	})
	addParseToken('hmm', function (input, array, config) {
		var pos = input.length - 2
		array[HOUR] = toInt(input.substr(0, pos))
		array[MINUTE] = toInt(input.substr(pos))
		getParsingFlags(config).bigHour = true
	})
	addParseToken('hmmss', function (input, array, config) {
		var pos1 = input.length - 4
		var pos2 = input.length - 2
		array[HOUR] = toInt(input.substr(0, pos1))
		array[MINUTE] = toInt(input.substr(pos1, 2))
		array[SECOND] = toInt(input.substr(pos2))
		getParsingFlags(config).bigHour = true
	})
	addParseToken('Hmm', function (input, array, config) {
		var pos = input.length - 2
		array[HOUR] = toInt(input.substr(0, pos))
		array[MINUTE] = toInt(input.substr(pos))
	})
	addParseToken('Hmmss', function (input, array, config) {
		var pos1 = input.length - 4
		var pos2 = input.length - 2
		array[HOUR] = toInt(input.substr(0, pos1))
		array[MINUTE] = toInt(input.substr(pos1, 2))
		array[SECOND] = toInt(input.substr(pos2))
	})

	// LOCALES

	function localeIsPM(input) {
		// IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
		// Using charAt should be more compatible.
		return (input + '').toLowerCase().charAt(0) === 'p'
	}

	var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i
	function localeMeridiem(hours, minutes, isLower) {
		if (hours > 11) {
			return isLower ? 'pm' : 'PM'
		} else {
			return isLower ? 'am' : 'AM'
		}
	}

	// MOMENTS

	// Setting the hour should keep the time, because the user explicitly
	// specified which hour they want. So trying to maintain the same hour (in
	// a new timezone) makes sense. Adding/subtracting hours does not follow
	// this rule.
	var getSetHour = makeGetSet('Hours', true)

	var baseConfig = {
		calendar: defaultCalendar,
		longDateFormat: defaultLongDateFormat,
		invalidDate: defaultInvalidDate,
		ordinal: defaultOrdinal,
		dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
		relativeTime: defaultRelativeTime,

		months: defaultLocaleMonths,
		monthsShort: defaultLocaleMonthsShort,

		week: defaultLocaleWeek,

		weekdays: defaultLocaleWeekdays,
		weekdaysMin: defaultLocaleWeekdaysMin,
		weekdaysShort: defaultLocaleWeekdaysShort,

		meridiemParse: defaultLocaleMeridiemParse,
	}

	// internal storage for locale config files
	var locales = {}
	var localeFamilies = {}
	var globalLocale

	function normalizeLocale(key) {
		return key ? key.toLowerCase().replace('_', '-') : key
	}

	// pick the locale from the array
	// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
	// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
	function chooseLocale(names) {
		var i = 0,
			j,
			next,
			locale,
			split

		while (i < names.length) {
			split = normalizeLocale(names[i]).split('-')
			j = split.length
			next = normalizeLocale(names[i + 1])
			next = next ? next.split('-') : null
			while (j > 0) {
				locale = loadLocale(split.slice(0, j).join('-'))
				if (locale) {
					return locale
				}
				if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
					//the next array item is better than a shallower substring of this one
					break
				}
				j--
			}
			i++
		}
		return globalLocale
	}

	function loadLocale(name) {
		var oldLocale = null
		// TODO: Find a better way to register and load all the locales in Node
		if (!locales[name] && typeof module !== 'undefined' && module && module.exports) {
			try {
				oldLocale = globalLocale._abbr
				var aliasedRequire = require
				aliasedRequire('./locale/' + name)
				getSetGlobalLocale(oldLocale)
			} catch (e) {}
		}
		return locales[name]
	}

	// This function will load locale and then set the global locale.  If
	// no arguments are passed in, it will simply return the current global
	// locale key.
	function getSetGlobalLocale(key, values) {
		var data
		if (key) {
			if (isUndefined(values)) {
				data = getLocale(key)
			} else {
				data = defineLocale(key, values)
			}

			if (data) {
				// moment.duration._locale = moment._locale = data;
				globalLocale = data
			} else {
				if (typeof console !== 'undefined' && console.warn) {
					//warn user if arguments are passed but the locale could not be set
					console.warn('Locale ' + key + ' not found. Did you forget to load it?')
				}
			}
		}

		return globalLocale._abbr
	}

	function defineLocale(name, config) {
		if (config !== null) {
			var locale,
				parentConfig = baseConfig
			config.abbr = name
			if (locales[name] != null) {
				deprecateSimple(
					'defineLocaleOverride',
					'use moment.updateLocale(localeName, config) to change ' +
						'an existing locale. moment.defineLocale(localeName, ' +
						'config) should only be used for creating a new locale ' +
						'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.'
				)
				parentConfig = locales[name]._config
			} else if (config.parentLocale != null) {
				if (locales[config.parentLocale] != null) {
					parentConfig = locales[config.parentLocale]._config
				} else {
					locale = loadLocale(config.parentLocale)
					if (locale != null) {
						parentConfig = locale._config
					} else {
						if (!localeFamilies[config.parentLocale]) {
							localeFamilies[config.parentLocale] = []
						}
						localeFamilies[config.parentLocale].push({
							name: name,
							config: config,
						})
						return null
					}
				}
			}
			locales[name] = new Locale(mergeConfigs(parentConfig, config))

			if (localeFamilies[name]) {
				localeFamilies[name].forEach(function (x) {
					defineLocale(x.name, x.config)
				})
			}

			// backwards compat for now: also set the locale
			// make sure we set the locale AFTER all child locales have been
			// created, so we won't end up with the child locale set.
			getSetGlobalLocale(name)

			return locales[name]
		} else {
			// useful for testing
			delete locales[name]
			return null
		}
	}

	function updateLocale(name, config) {
		if (config != null) {
			var locale,
				tmpLocale,
				parentConfig = baseConfig
			// MERGE
			tmpLocale = loadLocale(name)
			if (tmpLocale != null) {
				parentConfig = tmpLocale._config
			}
			config = mergeConfigs(parentConfig, config)
			locale = new Locale(config)
			locale.parentLocale = locales[name]
			locales[name] = locale

			// backwards compat for now: also set the locale
			getSetGlobalLocale(name)
		} else {
			// pass null for config to unupdate, useful for tests
			if (locales[name] != null) {
				if (locales[name].parentLocale != null) {
					locales[name] = locales[name].parentLocale
				} else if (locales[name] != null) {
					delete locales[name]
				}
			}
		}
		return locales[name]
	}

	// returns locale data
	function getLocale(key) {
		var locale

		if (key && key._locale && key._locale._abbr) {
			key = key._locale._abbr
		}

		if (!key) {
			return globalLocale
		}

		if (!isArray(key)) {
			//short-circuit everything else
			locale = loadLocale(key)
			if (locale) {
				return locale
			}
			key = [key]
		}

		return chooseLocale(key)
	}

	function listLocales() {
		return keys(locales)
	}

	function checkOverflow(m) {
		var overflow
		var a = m._a

		if (a && getParsingFlags(m).overflow === -2) {
			overflow =
				a[MONTH] < 0 || a[MONTH] > 11
					? MONTH
					: a[DATE] < 1 || a[DATE] > daysInMonth(a[YEAR], a[MONTH])
						? DATE
						: a[HOUR] < 0 || a[HOUR] > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0))
							? HOUR
							: a[MINUTE] < 0 || a[MINUTE] > 59
								? MINUTE
								: a[SECOND] < 0 || a[SECOND] > 59
									? SECOND
									: a[MILLISECOND] < 0 || a[MILLISECOND] > 999
										? MILLISECOND
										: -1

			if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
				overflow = DATE
			}
			if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
				overflow = WEEK
			}
			if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
				overflow = WEEKDAY
			}

			getParsingFlags(m).overflow = overflow
		}

		return m
	}

	// Pick the first defined of two or three arguments.
	function defaults(a, b, c) {
		if (a != null) {
			return a
		}
		if (b != null) {
			return b
		}
		return c
	}

	function currentDateArray(config) {
		// hooks is actually the exported moment object
		var nowValue = new Date(hooks.now())
		if (config._useUTC) {
			return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()]
		}
		return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()]
	}

	// convert an array to a date.
	// the array should mirror the parameters below
	// note: all values past the year are optional and will default to the lowest possible value.
	// [year, month, day , hour, minute, second, millisecond]
	function configFromArray(config) {
		var i,
			date,
			input = [],
			currentDate,
			expectedWeekday,
			yearToUse

		if (config._d) {
			return
		}

		currentDate = currentDateArray(config)

		//compute day of the year from weeks and weekdays
		if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
			dayOfYearFromWeekInfo(config)
		}

		//if the day of the year is set, figure out what it is
		if (config._dayOfYear != null) {
			yearToUse = defaults(config._a[YEAR], currentDate[YEAR])

			if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
				getParsingFlags(config)._overflowDayOfYear = true
			}

			date = createUTCDate(yearToUse, 0, config._dayOfYear)
			config._a[MONTH] = date.getUTCMonth()
			config._a[DATE] = date.getUTCDate()
		}

		// Default to current date.
		// * if no year, month, day of month are given, default to today
		// * if day of month is given, default month and year
		// * if month is given, default only year
		// * if year is given, don't default anything
		for (i = 0; i < 3 && config._a[i] == null; ++i) {
			config._a[i] = input[i] = currentDate[i]
		}

		// Zero out whatever was not defaulted, including time
		for (; i < 7; i++) {
			config._a[i] = input[i] = config._a[i] == null ? (i === 2 ? 1 : 0) : config._a[i]
		}

		// Check for 24:00:00.000
		if (config._a[HOUR] === 24 && config._a[MINUTE] === 0 && config._a[SECOND] === 0 && config._a[MILLISECOND] === 0) {
			config._nextDay = true
			config._a[HOUR] = 0
		}

		config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input)
		expectedWeekday = config._useUTC ? config._d.getUTCDay() : config._d.getDay()

		// Apply timezone offset from input. The actual utcOffset can be changed
		// with parseZone.
		if (config._tzm != null) {
			config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm)
		}

		if (config._nextDay) {
			config._a[HOUR] = 24
		}

		// check for mismatching day of week
		if (config._w && typeof config._w.d !== 'undefined' && config._w.d !== expectedWeekday) {
			getParsingFlags(config).weekdayMismatch = true
		}
	}

	function dayOfYearFromWeekInfo(config) {
		var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow

		w = config._w
		if (w.GG != null || w.W != null || w.E != null) {
			dow = 1
			doy = 4

			// TODO: We need to take the current isoWeekYear, but that depends on
			// how we interpret now (local, utc, fixed offset). So create
			// a now version of current config (take local/utc/offset flags, and
			// create now).
			weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year)
			week = defaults(w.W, 1)
			weekday = defaults(w.E, 1)
			if (weekday < 1 || weekday > 7) {
				weekdayOverflow = true
			}
		} else {
			dow = config._locale._week.dow
			doy = config._locale._week.doy

			var curWeek = weekOfYear(createLocal(), dow, doy)

			weekYear = defaults(w.gg, config._a[YEAR], curWeek.year)

			// Default to current week.
			week = defaults(w.w, curWeek.week)

			if (w.d != null) {
				// weekday -- low day numbers are considered next week
				weekday = w.d
				if (weekday < 0 || weekday > 6) {
					weekdayOverflow = true
				}
			} else if (w.e != null) {
				// local weekday -- counting starts from beginning of week
				weekday = w.e + dow
				if (w.e < 0 || w.e > 6) {
					weekdayOverflow = true
				}
			} else {
				// default to beginning of week
				weekday = dow
			}
		}
		if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
			getParsingFlags(config)._overflowWeeks = true
		} else if (weekdayOverflow != null) {
			getParsingFlags(config)._overflowWeekday = true
		} else {
			temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy)
			config._a[YEAR] = temp.year
			config._dayOfYear = temp.dayOfYear
		}
	}

	// iso 8601 regex
	// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
	var extendedIsoRegex =
		/^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/
	var basicIsoRegex =
		/^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/

	var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/

	var isoDates = [
		['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
		['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
		['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
		['GGGG-[W]WW', /\d{4}-W\d\d/, false],
		['YYYY-DDD', /\d{4}-\d{3}/],
		['YYYY-MM', /\d{4}-\d\d/, false],
		['YYYYYYMMDD', /[+-]\d{10}/],
		['YYYYMMDD', /\d{8}/],
		// YYYYMM is NOT allowed by the standard
		['GGGG[W]WWE', /\d{4}W\d{3}/],
		['GGGG[W]WW', /\d{4}W\d{2}/, false],
		['YYYYDDD', /\d{7}/],
	]

	// iso time formats and regexes
	var isoTimes = [
		['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
		['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
		['HH:mm:ss', /\d\d:\d\d:\d\d/],
		['HH:mm', /\d\d:\d\d/],
		['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
		['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
		['HHmmss', /\d\d\d\d\d\d/],
		['HHmm', /\d\d\d\d/],
		['HH', /\d\d/],
	]

	var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i

	// date from iso format
	function configFromISO(config) {
		var i,
			l,
			string = config._i,
			match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
			allowTime,
			dateFormat,
			timeFormat,
			tzFormat

		if (match) {
			getParsingFlags(config).iso = true

			for (i = 0, l = isoDates.length; i < l; i++) {
				if (isoDates[i][1].exec(match[1])) {
					dateFormat = isoDates[i][0]
					allowTime = isoDates[i][2] !== false
					break
				}
			}
			if (dateFormat == null) {
				config._isValid = false
				return
			}
			if (match[3]) {
				for (i = 0, l = isoTimes.length; i < l; i++) {
					if (isoTimes[i][1].exec(match[3])) {
						// match[2] should be 'T' or space
						timeFormat = (match[2] || ' ') + isoTimes[i][0]
						break
					}
				}
				if (timeFormat == null) {
					config._isValid = false
					return
				}
			}
			if (!allowTime && timeFormat != null) {
				config._isValid = false
				return
			}
			if (match[4]) {
				if (tzRegex.exec(match[4])) {
					tzFormat = 'Z'
				} else {
					config._isValid = false
					return
				}
			}
			config._f = dateFormat + (timeFormat || '') + (tzFormat || '')
			configFromStringAndFormat(config)
		} else {
			config._isValid = false
		}
	}

	// RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
	var rfc2822 =
		/^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/

	function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
		var result = [
			untruncateYear(yearStr),
			defaultLocaleMonthsShort.indexOf(monthStr),
			parseInt(dayStr, 10),
			parseInt(hourStr, 10),
			parseInt(minuteStr, 10),
		]

		if (secondStr) {
			result.push(parseInt(secondStr, 10))
		}

		return result
	}

	function untruncateYear(yearStr) {
		var year = parseInt(yearStr, 10)
		if (year <= 49) {
			return 2000 + year
		} else if (year <= 999) {
			return 1900 + year
		}
		return year
	}

	function preprocessRFC2822(s) {
		// Remove comments and folding whitespace and replace multiple-spaces with a single space
		return s
			.replace(/\([^)]*\)|[\n\t]/g, ' ')
			.replace(/(\s\s+)/g, ' ')
			.replace(/^\s\s*/, '')
			.replace(/\s\s*$/, '')
	}

	function checkWeekday(weekdayStr, parsedInput, config) {
		if (weekdayStr) {
			// TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
			var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
				weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay()
			if (weekdayProvided !== weekdayActual) {
				getParsingFlags(config).weekdayMismatch = true
				config._isValid = false
				return false
			}
		}
		return true
	}

	var obsOffsets = {
		UT: 0,
		GMT: 0,
		EDT: -4 * 60,
		EST: -5 * 60,
		CDT: -5 * 60,
		CST: -6 * 60,
		MDT: -6 * 60,
		MST: -7 * 60,
		PDT: -7 * 60,
		PST: -8 * 60,
	}

	function calculateOffset(obsOffset, militaryOffset, numOffset) {
		if (obsOffset) {
			return obsOffsets[obsOffset]
		} else if (militaryOffset) {
			// the only allowed military tz is Z
			return 0
		} else {
			var hm = parseInt(numOffset, 10)
			var m = hm % 100,
				h = (hm - m) / 100
			return h * 60 + m
		}
	}

	// date and time from ref 2822 format
	function configFromRFC2822(config) {
		var match = rfc2822.exec(preprocessRFC2822(config._i))
		if (match) {
			var parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7])
			if (!checkWeekday(match[1], parsedArray, config)) {
				return
			}

			config._a = parsedArray
			config._tzm = calculateOffset(match[8], match[9], match[10])

			config._d = createUTCDate.apply(null, config._a)
			config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm)

			getParsingFlags(config).rfc2822 = true
		} else {
			config._isValid = false
		}
	}

	// date from iso format or fallback
	function configFromString(config) {
		var matched = aspNetJsonRegex.exec(config._i)

		if (matched !== null) {
			config._d = new Date(+matched[1])
			return
		}

		configFromISO(config)
		if (config._isValid === false) {
			delete config._isValid
		} else {
			return
		}

		configFromRFC2822(config)
		if (config._isValid === false) {
			delete config._isValid
		} else {
			return
		}

		// Final attempt, use Input Fallback
		hooks.createFromInputFallback(config)
	}

	hooks.createFromInputFallback = deprecate(
		'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
			'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
			'discouraged and will be removed in an upcoming major release. Please refer to ' +
			'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
		function (config) {
			config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''))
		}
	)

	// constant that refers to the ISO standard
	hooks.ISO_8601 = function () {}

	// constant that refers to the RFC 2822 form
	hooks.RFC_2822 = function () {}

	// date from string and format string
	function configFromStringAndFormat(config) {
		// TODO: Move this to another part of the creation flow to prevent circular deps
		if (config._f === hooks.ISO_8601) {
			configFromISO(config)
			return
		}
		if (config._f === hooks.RFC_2822) {
			configFromRFC2822(config)
			return
		}
		config._a = []
		getParsingFlags(config).empty = true

		// This array is used to make a Date, either with `new Date` or `Date.UTC`
		var string = '' + config._i,
			i,
			parsedInput,
			tokens,
			token,
			skipped,
			stringLength = string.length,
			totalParsedInputLength = 0

		tokens = expandFormat(config._f, config._locale).match(formattingTokens) || []

		for (i = 0; i < tokens.length; i++) {
			token = tokens[i]
			parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0]
			// console.log('token', token, 'parsedInput', parsedInput,
			//         'regex', getParseRegexForToken(token, config));
			if (parsedInput) {
				skipped = string.substr(0, string.indexOf(parsedInput))
				if (skipped.length > 0) {
					getParsingFlags(config).unusedInput.push(skipped)
				}
				string = string.slice(string.indexOf(parsedInput) + parsedInput.length)
				totalParsedInputLength += parsedInput.length
			}
			// don't parse if it's not a known token
			if (formatTokenFunctions[token]) {
				if (parsedInput) {
					getParsingFlags(config).empty = false
				} else {
					getParsingFlags(config).unusedTokens.push(token)
				}
				addTimeToArrayFromToken(token, parsedInput, config)
			} else if (config._strict && !parsedInput) {
				getParsingFlags(config).unusedTokens.push(token)
			}
		}

		// add remaining unparsed input length to the string
		getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength
		if (string.length > 0) {
			getParsingFlags(config).unusedInput.push(string)
		}

		// clear _12h flag if hour is <= 12
		if (config._a[HOUR] <= 12 && getParsingFlags(config).bigHour === true && config._a[HOUR] > 0) {
			getParsingFlags(config).bigHour = undefined
		}

		getParsingFlags(config).parsedDateParts = config._a.slice(0)
		getParsingFlags(config).meridiem = config._meridiem
		// handle meridiem
		config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem)

		configFromArray(config)
		checkOverflow(config)
	}

	function meridiemFixWrap(locale, hour, meridiem) {
		var isPm

		if (meridiem == null) {
			// nothing to do
			return hour
		}
		if (locale.meridiemHour != null) {
			return locale.meridiemHour(hour, meridiem)
		} else if (locale.isPM != null) {
			// Fallback
			isPm = locale.isPM(meridiem)
			if (isPm && hour < 12) {
				hour += 12
			}
			if (!isPm && hour === 12) {
				hour = 0
			}
			return hour
		} else {
			// this is not supposed to happen
			return hour
		}
	}

	// date from string and array of format strings
	function configFromStringAndArray(config) {
		var tempConfig, bestMoment, scoreToBeat, i, currentScore

		if (config._f.length === 0) {
			getParsingFlags(config).invalidFormat = true
			config._d = new Date(NaN)
			return
		}

		for (i = 0; i < config._f.length; i++) {
			currentScore = 0
			tempConfig = copyConfig({}, config)
			if (config._useUTC != null) {
				tempConfig._useUTC = config._useUTC
			}
			tempConfig._f = config._f[i]
			configFromStringAndFormat(tempConfig)

			if (!isValid(tempConfig)) {
				continue
			}

			// if there is any input that was not parsed add a penalty for that format
			currentScore += getParsingFlags(tempConfig).charsLeftOver

			//or tokens
			currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10

			getParsingFlags(tempConfig).score = currentScore

			if (scoreToBeat == null || currentScore < scoreToBeat) {
				scoreToBeat = currentScore
				bestMoment = tempConfig
			}
		}

		extend(config, bestMoment || tempConfig)
	}

	function configFromObject(config) {
		if (config._d) {
			return
		}

		var i = normalizeObjectUnits(config._i)
		config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
			return obj && parseInt(obj, 10)
		})

		configFromArray(config)
	}

	function createFromConfig(config) {
		var res = new Moment(checkOverflow(prepareConfig(config)))
		if (res._nextDay) {
			// Adding is smart enough around DST
			res.add(1, 'd')
			res._nextDay = undefined
		}

		return res
	}

	function prepareConfig(config) {
		var input = config._i,
			format = config._f

		config._locale = config._locale || getLocale(config._l)

		if (input === null || (format === undefined && input === '')) {
			return createInvalid({ nullInput: true })
		}

		if (typeof input === 'string') {
			config._i = input = config._locale.preparse(input)
		}

		if (isMoment(input)) {
			return new Moment(checkOverflow(input))
		} else if (isDate(input)) {
			config._d = input
		} else if (isArray(format)) {
			configFromStringAndArray(config)
		} else if (format) {
			configFromStringAndFormat(config)
		} else {
			configFromInput(config)
		}

		if (!isValid(config)) {
			config._d = null
		}

		return config
	}

	function configFromInput(config) {
		var input = config._i
		if (isUndefined(input)) {
			config._d = new Date(hooks.now())
		} else if (isDate(input)) {
			config._d = new Date(input.valueOf())
		} else if (typeof input === 'string') {
			configFromString(config)
		} else if (isArray(input)) {
			config._a = map(input.slice(0), function (obj) {
				return parseInt(obj, 10)
			})
			configFromArray(config)
		} else if (isObject(input)) {
			configFromObject(config)
		} else if (isNumber(input)) {
			// from milliseconds
			config._d = new Date(input)
		} else {
			hooks.createFromInputFallback(config)
		}
	}

	function createLocalOrUTC(input, format, locale, strict, isUTC) {
		var c = {}

		if (locale === true || locale === false) {
			strict = locale
			locale = undefined
		}

		if ((isObject(input) && isObjectEmpty(input)) || (isArray(input) && input.length === 0)) {
			input = undefined
		}
		// object construction must be done this way.
		// https://github.com/moment/moment/issues/1423
		c._isAMomentObject = true
		c._useUTC = c._isUTC = isUTC
		c._l = locale
		c._i = input
		c._f = format
		c._strict = strict

		return createFromConfig(c)
	}

	function createLocal(input, format, locale, strict) {
		return createLocalOrUTC(input, format, locale, strict, false)
	}

	var prototypeMin = deprecate('moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/', function () {
		var other = createLocal.apply(null, arguments)
		if (this.isValid() && other.isValid()) {
			return other < this ? this : other
		} else {
			return createInvalid()
		}
	})

	var prototypeMax = deprecate('moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/', function () {
		var other = createLocal.apply(null, arguments)
		if (this.isValid() && other.isValid()) {
			return other > this ? this : other
		} else {
			return createInvalid()
		}
	})

	// Pick a moment m from moments so that m[fn](other) is true for all
	// other. This relies on the function fn to be transitive.
	//
	// moments should either be an array of moment objects or an array, whose
	// first element is an array of moment objects.
	function pickBy(fn, moments) {
		var res, i
		if (moments.length === 1 && isArray(moments[0])) {
			moments = moments[0]
		}
		if (!moments.length) {
			return createLocal()
		}
		res = moments[0]
		for (i = 1; i < moments.length; ++i) {
			if (!moments[i].isValid() || moments[i][fn](res)) {
				res = moments[i]
			}
		}
		return res
	}

	// TODO: Use [].sort instead?
	function min() {
		var args = [].slice.call(arguments, 0)

		return pickBy('isBefore', args)
	}

	function max() {
		var args = [].slice.call(arguments, 0)

		return pickBy('isAfter', args)
	}

	var now = function () {
		return Date.now ? Date.now() : +new Date()
	}

	var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond']

	function isDurationValid(m) {
		for (var key in m) {
			if (!(indexOf.call(ordering, key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
				return false
			}
		}

		var unitHasDecimal = false
		for (var i = 0; i < ordering.length; ++i) {
			if (m[ordering[i]]) {
				if (unitHasDecimal) {
					return false // only allow non-integers for smallest unit
				}
				if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
					unitHasDecimal = true
				}
			}
		}

		return true
	}

	function isValid$1() {
		return this._isValid
	}

	function createInvalid$1() {
		return createDuration(NaN)
	}

	function Duration(duration) {
		var normalizedInput = normalizeObjectUnits(duration),
			years = normalizedInput.year || 0,
			quarters = normalizedInput.quarter || 0,
			months = normalizedInput.month || 0,
			weeks = normalizedInput.week || normalizedInput.isoWeek || 0,
			days = normalizedInput.day || 0,
			hours = normalizedInput.hour || 0,
			minutes = normalizedInput.minute || 0,
			seconds = normalizedInput.second || 0,
			milliseconds = normalizedInput.millisecond || 0

		this._isValid = isDurationValid(normalizedInput)

		// representation for dateAddRemove
		this._milliseconds =
			+milliseconds +
			seconds * 1e3 + // 1000
			minutes * 6e4 + // 1000 * 60
			hours * 1000 * 60 * 60 //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
		// Because of dateAddRemove treats 24 hours as different from a
		// day when working around DST, we need to store them separately
		this._days = +days + weeks * 7
		// It is impossible to translate months into days without knowing
		// which months you are are talking about, so we have to store
		// it separately.
		this._months = +months + quarters * 3 + years * 12

		this._data = {}

		this._locale = getLocale()

		this._bubble()
	}

	function isDuration(obj) {
		return obj instanceof Duration
	}

	function absRound(number) {
		if (number < 0) {
			return Math.round(-1 * number) * -1
		} else {
			return Math.round(number)
		}
	}

	// FORMATTING

	function offset(token, separator) {
		addFormatToken(token, 0, 0, function () {
			var offset = this.utcOffset()
			var sign = '+'
			if (offset < 0) {
				offset = -offset
				sign = '-'
			}
			return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~offset % 60, 2)
		})
	}

	offset('Z', ':')
	offset('ZZ', '')

	// PARSING

	addRegexToken('Z', matchShortOffset)
	addRegexToken('ZZ', matchShortOffset)
	addParseToken(['Z', 'ZZ'], function (input, array, config) {
		config._useUTC = true
		config._tzm = offsetFromString(matchShortOffset, input)
	})

	// HELPERS

	// timezone chunker
	// '+10:00' > ['10',  '00']
	// '-1530'  > ['-15', '30']
	var chunkOffset = /([\+\-]|\d\d)/gi

	function offsetFromString(matcher, string) {
		var matches = (string || '').match(matcher)

		if (matches === null) {
			return null
		}

		var chunk = matches[matches.length - 1] || []
		var parts = (chunk + '').match(chunkOffset) || ['-', 0, 0]
		var minutes = +(parts[1] * 60) + toInt(parts[2])

		return minutes === 0 ? 0 : parts[0] === '+' ? minutes : -minutes
	}

	// Return a moment from input, that is local/utc/zone equivalent to model.
	function cloneWithOffset(input, model) {
		var res, diff
		if (model._isUTC) {
			res = model.clone()
			diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf()
			// Use low-level api, because this fn is low-level api.
			res._d.setTime(res._d.valueOf() + diff)
			hooks.updateOffset(res, false)
			return res
		} else {
			return createLocal(input).local()
		}
	}

	function getDateOffset(m) {
		// On Firefox.24 Date#getTimezoneOffset returns a floating point.
		// https://github.com/moment/moment/pull/1871
		return -Math.round(m._d.getTimezoneOffset() / 15) * 15
	}

	// HOOKS

	// This function will be called whenever a moment is mutated.
	// It is intended to keep the offset in sync with the timezone.
	hooks.updateOffset = function () {}

	// MOMENTS

	// keepLocalTime = true means only change the timezone, without
	// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
	// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
	// +0200, so we adjust the time as needed, to be valid.
	//
	// Keeping the time actually adds/subtracts (one hour)
	// from the actual represented time. That is why we call updateOffset
	// a second time. In case it wants us to change the offset again
	// _changeInProgress == true case, then we have to adjust, because
	// there is no such time in the given timezone.
	function getSetOffset(input, keepLocalTime, keepMinutes) {
		var offset = this._offset || 0,
			localAdjust
		if (!this.isValid()) {
			return input != null ? this : NaN
		}
		if (input != null) {
			if (typeof input === 'string') {
				input = offsetFromString(matchShortOffset, input)
				if (input === null) {
					return this
				}
			} else if (Math.abs(input) < 16 && !keepMinutes) {
				input = input * 60
			}
			if (!this._isUTC && keepLocalTime) {
				localAdjust = getDateOffset(this)
			}
			this._offset = input
			this._isUTC = true
			if (localAdjust != null) {
				this.add(localAdjust, 'm')
			}
			if (offset !== input) {
				if (!keepLocalTime || this._changeInProgress) {
					addSubtract(this, createDuration(input - offset, 'm'), 1, false)
				} else if (!this._changeInProgress) {
					this._changeInProgress = true
					hooks.updateOffset(this, true)
					this._changeInProgress = null
				}
			}
			return this
		} else {
			return this._isUTC ? offset : getDateOffset(this)
		}
	}

	function getSetZone(input, keepLocalTime) {
		if (input != null) {
			if (typeof input !== 'string') {
				input = -input
			}

			this.utcOffset(input, keepLocalTime)

			return this
		} else {
			return -this.utcOffset()
		}
	}

	function setOffsetToUTC(keepLocalTime) {
		return this.utcOffset(0, keepLocalTime)
	}

	function setOffsetToLocal(keepLocalTime) {
		if (this._isUTC) {
			this.utcOffset(0, keepLocalTime)
			this._isUTC = false

			if (keepLocalTime) {
				this.subtract(getDateOffset(this), 'm')
			}
		}
		return this
	}

	function setOffsetToParsedOffset() {
		if (this._tzm != null) {
			this.utcOffset(this._tzm, false, true)
		} else if (typeof this._i === 'string') {
			var tZone = offsetFromString(matchOffset, this._i)
			if (tZone != null) {
				this.utcOffset(tZone)
			} else {
				this.utcOffset(0, true)
			}
		}
		return this
	}

	function hasAlignedHourOffset(input) {
		if (!this.isValid()) {
			return false
		}
		input = input ? createLocal(input).utcOffset() : 0

		return (this.utcOffset() - input) % 60 === 0
	}

	function isDaylightSavingTime() {
		return this.utcOffset() > this.clone().month(0).utcOffset() || this.utcOffset() > this.clone().month(5).utcOffset()
	}

	function isDaylightSavingTimeShifted() {
		if (!isUndefined(this._isDSTShifted)) {
			return this._isDSTShifted
		}

		var c = {}

		copyConfig(c, this)
		c = prepareConfig(c)

		if (c._a) {
			var other = c._isUTC ? createUTC(c._a) : createLocal(c._a)
			this._isDSTShifted = this.isValid() && compareArrays(c._a, other.toArray()) > 0
		} else {
			this._isDSTShifted = false
		}

		return this._isDSTShifted
	}

	function isLocal() {
		return this.isValid() ? !this._isUTC : false
	}

	function isUtcOffset() {
		return this.isValid() ? this._isUTC : false
	}

	function isUtc() {
		return this.isValid() ? this._isUTC && this._offset === 0 : false
	}

	// ASP.NET json date format regex
	var aspNetRegex = /^(\-|\+)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/

	// from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
	// somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
	// and further modified to allow for strings containing both week and day
	var isoRegex =
		/^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/

	function createDuration(input, key) {
		var duration = input,
			// matching against regexp is expensive, do it on demand
			match = null,
			sign,
			ret,
			diffRes

		if (isDuration(input)) {
			duration = {
				ms: input._milliseconds,
				d: input._days,
				M: input._months,
			}
		} else if (isNumber(input)) {
			duration = {}
			if (key) {
				duration[key] = input
			} else {
				duration.milliseconds = input
			}
		} else if (!!(match = aspNetRegex.exec(input))) {
			sign = match[1] === '-' ? -1 : 1
			duration = {
				y: 0,
				d: toInt(match[DATE]) * sign,
				h: toInt(match[HOUR]) * sign,
				m: toInt(match[MINUTE]) * sign,
				s: toInt(match[SECOND]) * sign,
				ms: toInt(absRound(match[MILLISECOND] * 1000)) * sign, // the millisecond decimal point is included in the match
			}
		} else if (!!(match = isoRegex.exec(input))) {
			sign = match[1] === '-' ? -1 : 1
			duration = {
				y: parseIso(match[2], sign),
				M: parseIso(match[3], sign),
				w: parseIso(match[4], sign),
				d: parseIso(match[5], sign),
				h: parseIso(match[6], sign),
				m: parseIso(match[7], sign),
				s: parseIso(match[8], sign),
			}
		} else if (duration == null) {
			// checks for null or undefined
			duration = {}
		} else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
			diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to))

			duration = {}
			duration.ms = diffRes.milliseconds
			duration.M = diffRes.months
		}

		ret = new Duration(duration)

		if (isDuration(input) && hasOwnProp(input, '_locale')) {
			ret._locale = input._locale
		}

		return ret
	}

	createDuration.fn = Duration.prototype
	createDuration.invalid = createInvalid$1

	function parseIso(inp, sign) {
		// We'd normally use ~~inp for this, but unfortunately it also
		// converts floats to ints.
		// inp may be undefined, so careful calling replace on it.
		var res = inp && parseFloat(inp.replace(',', '.'))
		// apply sign while we're at it
		return (isNaN(res) ? 0 : res) * sign
	}

	function positiveMomentsDifference(base, other) {
		var res = {}

		res.months = other.month() - base.month() + (other.year() - base.year()) * 12
		if (base.clone().add(res.months, 'M').isAfter(other)) {
			--res.months
		}

		res.milliseconds = +other - +base.clone().add(res.months, 'M')

		return res
	}

	function momentsDifference(base, other) {
		var res
		if (!(base.isValid() && other.isValid())) {
			return { milliseconds: 0, months: 0 }
		}

		other = cloneWithOffset(other, base)
		if (base.isBefore(other)) {
			res = positiveMomentsDifference(base, other)
		} else {
			res = positiveMomentsDifference(other, base)
			res.milliseconds = -res.milliseconds
			res.months = -res.months
		}

		return res
	}

	// TODO: remove 'name' arg after deprecation is removed
	function createAdder(direction, name) {
		return function (val, period) {
			var dur, tmp
			//invert the arguments, but complain about it
			if (period !== null && !isNaN(+period)) {
				deprecateSimple(
					name,
					'moment().' +
						name +
						'(period, number) is deprecated. Please use moment().' +
						name +
						'(number, period). ' +
						'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.'
				)
				tmp = val
				val = period
				period = tmp
			}

			val = typeof val === 'string' ? +val : val
			dur = createDuration(val, period)
			addSubtract(this, dur, direction)
			return this
		}
	}

	function addSubtract(mom, duration, isAdding, updateOffset) {
		var milliseconds = duration._milliseconds,
			days = absRound(duration._days),
			months = absRound(duration._months)

		if (!mom.isValid()) {
			// No op
			return
		}

		updateOffset = updateOffset == null ? true : updateOffset

		if (months) {
			setMonth(mom, get(mom, 'Month') + months * isAdding)
		}
		if (days) {
			set$1(mom, 'Date', get(mom, 'Date') + days * isAdding)
		}
		if (milliseconds) {
			mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding)
		}
		if (updateOffset) {
			hooks.updateOffset(mom, days || months)
		}
	}

	var add = createAdder(1, 'add')
	var subtract = createAdder(-1, 'subtract')

	function getCalendarFormat(myMoment, now) {
		var diff = myMoment.diff(now, 'days', true)
		return diff < -6
			? 'sameElse'
			: diff < -1
				? 'lastWeek'
				: diff < 0
					? 'lastDay'
					: diff < 1
						? 'sameDay'
						: diff < 2
							? 'nextDay'
							: diff < 7
								? 'nextWeek'
								: 'sameElse'
	}

	function calendar$1(time, formats) {
		// We want to compare the start of today, vs this.
		// Getting start-of-today depends on whether we're local/utc/offset or not.
		var now = time || createLocal(),
			sod = cloneWithOffset(now, this).startOf('day'),
			format = hooks.calendarFormat(this, sod) || 'sameElse'

		var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format])

		return this.format(output || this.localeData().calendar(format, this, createLocal(now)))
	}

	function clone() {
		return new Moment(this)
	}

	function isAfter(input, units) {
		var localInput = isMoment(input) ? input : createLocal(input)
		if (!(this.isValid() && localInput.isValid())) {
			return false
		}
		units = normalizeUnits(units) || 'millisecond'
		if (units === 'millisecond') {
			return this.valueOf() > localInput.valueOf()
		} else {
			return localInput.valueOf() < this.clone().startOf(units).valueOf()
		}
	}

	function isBefore(input, units) {
		var localInput = isMoment(input) ? input : createLocal(input)
		if (!(this.isValid() && localInput.isValid())) {
			return false
		}
		units = normalizeUnits(units) || 'millisecond'
		if (units === 'millisecond') {
			return this.valueOf() < localInput.valueOf()
		} else {
			return this.clone().endOf(units).valueOf() < localInput.valueOf()
		}
	}

	function isBetween(from, to, units, inclusivity) {
		var localFrom = isMoment(from) ? from : createLocal(from),
			localTo = isMoment(to) ? to : createLocal(to)
		if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {
			return false
		}
		inclusivity = inclusivity || '()'
		return (
			(inclusivity[0] === '(' ? this.isAfter(localFrom, units) : !this.isBefore(localFrom, units)) &&
			(inclusivity[1] === ')' ? this.isBefore(localTo, units) : !this.isAfter(localTo, units))
		)
	}

	function isSame(input, units) {
		var localInput = isMoment(input) ? input : createLocal(input),
			inputMs
		if (!(this.isValid() && localInput.isValid())) {
			return false
		}
		units = normalizeUnits(units) || 'millisecond'
		if (units === 'millisecond') {
			return this.valueOf() === localInput.valueOf()
		} else {
			inputMs = localInput.valueOf()
			return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf()
		}
	}

	function isSameOrAfter(input, units) {
		return this.isSame(input, units) || this.isAfter(input, units)
	}

	function isSameOrBefore(input, units) {
		return this.isSame(input, units) || this.isBefore(input, units)
	}

	function diff(input, units, asFloat) {
		var that, zoneDelta, output

		if (!this.isValid()) {
			return NaN
		}

		that = cloneWithOffset(input, this)

		if (!that.isValid()) {
			return NaN
		}

		zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4

		units = normalizeUnits(units)

		switch (units) {
			case 'year':
				output = monthDiff(this, that) / 12
				break
			case 'month':
				output = monthDiff(this, that)
				break
			case 'quarter':
				output = monthDiff(this, that) / 3
				break
			case 'second':
				output = (this - that) / 1e3
				break // 1000
			case 'minute':
				output = (this - that) / 6e4
				break // 1000 * 60
			case 'hour':
				output = (this - that) / 36e5
				break // 1000 * 60 * 60
			case 'day':
				output = (this - that - zoneDelta) / 864e5
				break // 1000 * 60 * 60 * 24, negate dst
			case 'week':
				output = (this - that - zoneDelta) / 6048e5
				break // 1000 * 60 * 60 * 24 * 7, negate dst
			default:
				output = this - that
		}

		return asFloat ? output : absFloor(output)
	}

	function monthDiff(a, b) {
		// difference in months
		var wholeMonthDiff = (b.year() - a.year()) * 12 + (b.month() - a.month()),
			// b is in (anchor - 1 month, anchor + 1 month)
			anchor = a.clone().add(wholeMonthDiff, 'months'),
			anchor2,
			adjust

		if (b - anchor < 0) {
			anchor2 = a.clone().add(wholeMonthDiff - 1, 'months')
			// linear across the month
			adjust = (b - anchor) / (anchor - anchor2)
		} else {
			anchor2 = a.clone().add(wholeMonthDiff + 1, 'months')
			// linear across the month
			adjust = (b - anchor) / (anchor2 - anchor)
		}

		//check for negative zero, return zero if negative zero
		return -(wholeMonthDiff + adjust) || 0
	}

	hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ'
	hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]'

	function toString() {
		return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ')
	}

	function toISOString(keepOffset) {
		if (!this.isValid()) {
			return null
		}
		var utc = keepOffset !== true
		var m = utc ? this.clone().utc() : this
		if (m.year() < 0 || m.year() > 9999) {
			return formatMoment(m, utc ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ')
		}
		if (isFunction(Date.prototype.toISOString)) {
			// native implementation is ~50x faster, use it when we can
			if (utc) {
				return this.toDate().toISOString()
			} else {
				return new Date(this.valueOf() + this.utcOffset() * 60 * 1000).toISOString().replace('Z', formatMoment(m, 'Z'))
			}
		}
		return formatMoment(m, utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ')
	}

	/**
	 * Return a human readable representation of a moment that can
	 * also be evaluated to get a new moment which is the same
	 *
	 * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
	 */
	function inspect() {
		if (!this.isValid()) {
			return 'moment.invalid(/* ' + this._i + ' */)'
		}
		var func = 'moment'
		var zone = ''
		if (!this.isLocal()) {
			func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone'
			zone = 'Z'
		}
		var prefix = '[' + func + '("]'
		var year = 0 <= this.year() && this.year() <= 9999 ? 'YYYY' : 'YYYYYY'
		var datetime = '-MM-DD[T]HH:mm:ss.SSS'
		var suffix = zone + '[")]'

		return this.format(prefix + year + datetime + suffix)
	}

	function format(inputString) {
		if (!inputString) {
			inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat
		}
		var output = formatMoment(this, inputString)
		return this.localeData().postformat(output)
	}

	function from(time, withoutSuffix) {
		if (this.isValid() && ((isMoment(time) && time.isValid()) || createLocal(time).isValid())) {
			return createDuration({ to: this, from: time }).locale(this.locale()).humanize(!withoutSuffix)
		} else {
			return this.localeData().invalidDate()
		}
	}

	function fromNow(withoutSuffix) {
		return this.from(createLocal(), withoutSuffix)
	}

	function to(time, withoutSuffix) {
		if (this.isValid() && ((isMoment(time) && time.isValid()) || createLocal(time).isValid())) {
			return createDuration({ from: this, to: time }).locale(this.locale()).humanize(!withoutSuffix)
		} else {
			return this.localeData().invalidDate()
		}
	}

	function toNow(withoutSuffix) {
		return this.to(createLocal(), withoutSuffix)
	}

	// If passed a locale key, it will set the locale for this
	// instance.  Otherwise, it will return the locale configuration
	// variables for this instance.
	function locale(key) {
		var newLocaleData

		if (key === undefined) {
			return this._locale._abbr
		} else {
			newLocaleData = getLocale(key)
			if (newLocaleData != null) {
				this._locale = newLocaleData
			}
			return this
		}
	}

	var lang = deprecate(
		'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
		function (key) {
			if (key === undefined) {
				return this.localeData()
			} else {
				return this.locale(key)
			}
		}
	)

	function localeData() {
		return this._locale
	}

	var MS_PER_SECOND = 1000
	var MS_PER_MINUTE = 60 * MS_PER_SECOND
	var MS_PER_HOUR = 60 * MS_PER_MINUTE
	var MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR

	// actual modulo - handles negative numbers (for dates before 1970):
	function mod$1(dividend, divisor) {
		return ((dividend % divisor) + divisor) % divisor
	}

	function localStartOfDate(y, m, d) {
		// the date constructor remaps years 0-99 to 1900-1999
		if (y < 100 && y >= 0) {
			// preserve leap years using a full 400 year cycle, then reset
			return new Date(y + 400, m, d) - MS_PER_400_YEARS
		} else {
			return new Date(y, m, d).valueOf()
		}
	}

	function utcStartOfDate(y, m, d) {
		// Date.UTC remaps years 0-99 to 1900-1999
		if (y < 100 && y >= 0) {
			// preserve leap years using a full 400 year cycle, then reset
			return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS
		} else {
			return Date.UTC(y, m, d)
		}
	}

	function startOf(units) {
		var time
		units = normalizeUnits(units)
		if (units === undefined || units === 'millisecond' || !this.isValid()) {
			return this
		}

		var startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate

		switch (units) {
			case 'year':
				time = startOfDate(this.year(), 0, 1)
				break
			case 'quarter':
				time = startOfDate(this.year(), this.month() - (this.month() % 3), 1)
				break
			case 'month':
				time = startOfDate(this.year(), this.month(), 1)
				break
			case 'week':
				time = startOfDate(this.year(), this.month(), this.date() - this.weekday())
				break
			case 'isoWeek':
				time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1))
				break
			case 'day':
			case 'date':
				time = startOfDate(this.year(), this.month(), this.date())
				break
			case 'hour':
				time = this._d.valueOf()
				time -= mod$1(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR)
				break
			case 'minute':
				time = this._d.valueOf()
				time -= mod$1(time, MS_PER_MINUTE)
				break
			case 'second':
				time = this._d.valueOf()
				time -= mod$1(time, MS_PER_SECOND)
				break
		}

		this._d.setTime(time)
		hooks.updateOffset(this, true)
		return this
	}

	function endOf(units) {
		var time
		units = normalizeUnits(units)
		if (units === undefined || units === 'millisecond' || !this.isValid()) {
			return this
		}

		var startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate

		switch (units) {
			case 'year':
				time = startOfDate(this.year() + 1, 0, 1) - 1
				break
			case 'quarter':
				time = startOfDate(this.year(), this.month() - (this.month() % 3) + 3, 1) - 1
				break
			case 'month':
				time = startOfDate(this.year(), this.month() + 1, 1) - 1
				break
			case 'week':
				time = startOfDate(this.year(), this.month(), this.date() - this.weekday() + 7) - 1
				break
			case 'isoWeek':
				time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1) + 7) - 1
				break
			case 'day':
			case 'date':
				time = startOfDate(this.year(), this.month(), this.date() + 1) - 1
				break
			case 'hour':
				time = this._d.valueOf()
				time += MS_PER_HOUR - mod$1(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR) - 1
				break
			case 'minute':
				time = this._d.valueOf()
				time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1
				break
			case 'second':
				time = this._d.valueOf()
				time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1
				break
		}

		this._d.setTime(time)
		hooks.updateOffset(this, true)
		return this
	}

	function valueOf() {
		return this._d.valueOf() - (this._offset || 0) * 60000
	}

	function unix() {
		return Math.floor(this.valueOf() / 1000)
	}

	function toDate() {
		return new Date(this.valueOf())
	}

	function toArray() {
		var m = this
		return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()]
	}

	function toObject() {
		var m = this
		return {
			years: m.year(),
			months: m.month(),
			date: m.date(),
			hours: m.hours(),
			minutes: m.minutes(),
			seconds: m.seconds(),
			milliseconds: m.milliseconds(),
		}
	}

	function toJSON() {
		// new Date(NaN).toJSON() === null
		return this.isValid() ? this.toISOString() : null
	}

	function isValid$2() {
		return isValid(this)
	}

	function parsingFlags() {
		return extend({}, getParsingFlags(this))
	}

	function invalidAt() {
		return getParsingFlags(this).overflow
	}

	function creationData() {
		return {
			input: this._i,
			format: this._f,
			locale: this._locale,
			isUTC: this._isUTC,
			strict: this._strict,
		}
	}

	// FORMATTING

	addFormatToken(0, ['gg', 2], 0, function () {
		return this.weekYear() % 100
	})

	addFormatToken(0, ['GG', 2], 0, function () {
		return this.isoWeekYear() % 100
	})

	function addWeekYearFormatToken(token, getter) {
		addFormatToken(0, [token, token.length], 0, getter)
	}

	addWeekYearFormatToken('gggg', 'weekYear')
	addWeekYearFormatToken('ggggg', 'weekYear')
	addWeekYearFormatToken('GGGG', 'isoWeekYear')
	addWeekYearFormatToken('GGGGG', 'isoWeekYear')

	// ALIASES

	addUnitAlias('weekYear', 'gg')
	addUnitAlias('isoWeekYear', 'GG')

	// PRIORITY

	addUnitPriority('weekYear', 1)
	addUnitPriority('isoWeekYear', 1)

	// PARSING

	addRegexToken('G', matchSigned)
	addRegexToken('g', matchSigned)
	addRegexToken('GG', match1to2, match2)
	addRegexToken('gg', match1to2, match2)
	addRegexToken('GGGG', match1to4, match4)
	addRegexToken('gggg', match1to4, match4)
	addRegexToken('GGGGG', match1to6, match6)
	addRegexToken('ggggg', match1to6, match6)

	addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
		week[token.substr(0, 2)] = toInt(input)
	})

	addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
		week[token] = hooks.parseTwoDigitYear(input)
	})

	// MOMENTS

	function getSetWeekYear(input) {
		return getSetWeekYearHelper.call(this, input, this.week(), this.weekday(), this.localeData()._week.dow, this.localeData()._week.doy)
	}

	function getSetISOWeekYear(input) {
		return getSetWeekYearHelper.call(this, input, this.isoWeek(), this.isoWeekday(), 1, 4)
	}

	function getISOWeeksInYear() {
		return weeksInYear(this.year(), 1, 4)
	}

	function getWeeksInYear() {
		var weekInfo = this.localeData()._week
		return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy)
	}

	function getSetWeekYearHelper(input, week, weekday, dow, doy) {
		var weeksTarget
		if (input == null) {
			return weekOfYear(this, dow, doy).year
		} else {
			weeksTarget = weeksInYear(input, dow, doy)
			if (week > weeksTarget) {
				week = weeksTarget
			}
			return setWeekAll.call(this, input, week, weekday, dow, doy)
		}
	}

	function setWeekAll(weekYear, week, weekday, dow, doy) {
		var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
			date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear)

		this.year(date.getUTCFullYear())
		this.month(date.getUTCMonth())
		this.date(date.getUTCDate())
		return this
	}

	// FORMATTING

	addFormatToken('Q', 0, 'Qo', 'quarter')

	// ALIASES

	addUnitAlias('quarter', 'Q')

	// PRIORITY

	addUnitPriority('quarter', 7)

	// PARSING

	addRegexToken('Q', match1)
	addParseToken('Q', function (input, array) {
		array[MONTH] = (toInt(input) - 1) * 3
	})

	// MOMENTS

	function getSetQuarter(input) {
		return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + (this.month() % 3))
	}

	// FORMATTING

	addFormatToken('D', ['DD', 2], 'Do', 'date')

	// ALIASES

	addUnitAlias('date', 'D')

	// PRIORITY
	addUnitPriority('date', 9)

	// PARSING

	addRegexToken('D', match1to2)
	addRegexToken('DD', match1to2, match2)
	addRegexToken('Do', function (isStrict, locale) {
		// TODO: Remove "ordinalParse" fallback in next major release.
		return isStrict ? locale._dayOfMonthOrdinalParse || locale._ordinalParse : locale._dayOfMonthOrdinalParseLenient
	})

	addParseToken(['D', 'DD'], DATE)
	addParseToken('Do', function (input, array) {
		array[DATE] = toInt(input.match(match1to2)[0])
	})

	// MOMENTS

	var getSetDayOfMonth = makeGetSet('Date', true)

	// FORMATTING

	addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear')

	// ALIASES

	addUnitAlias('dayOfYear', 'DDD')

	// PRIORITY
	addUnitPriority('dayOfYear', 4)

	// PARSING

	addRegexToken('DDD', match1to3)
	addRegexToken('DDDD', match3)
	addParseToken(['DDD', 'DDDD'], function (input, array, config) {
		config._dayOfYear = toInt(input)
	})

	// HELPERS

	// MOMENTS

	function getSetDayOfYear(input) {
		var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1
		return input == null ? dayOfYear : this.add(input - dayOfYear, 'd')
	}

	// FORMATTING

	addFormatToken('m', ['mm', 2], 0, 'minute')

	// ALIASES

	addUnitAlias('minute', 'm')

	// PRIORITY

	addUnitPriority('minute', 14)

	// PARSING

	addRegexToken('m', match1to2)
	addRegexToken('mm', match1to2, match2)
	addParseToken(['m', 'mm'], MINUTE)

	// MOMENTS

	var getSetMinute = makeGetSet('Minutes', false)

	// FORMATTING

	addFormatToken('s', ['ss', 2], 0, 'second')

	// ALIASES

	addUnitAlias('second', 's')

	// PRIORITY

	addUnitPriority('second', 15)

	// PARSING

	addRegexToken('s', match1to2)
	addRegexToken('ss', match1to2, match2)
	addParseToken(['s', 'ss'], SECOND)

	// MOMENTS

	var getSetSecond = makeGetSet('Seconds', false)

	// FORMATTING

	addFormatToken('S', 0, 0, function () {
		return ~~(this.millisecond() / 100)
	})

	addFormatToken(0, ['SS', 2], 0, function () {
		return ~~(this.millisecond() / 10)
	})

	addFormatToken(0, ['SSS', 3], 0, 'millisecond')
	addFormatToken(0, ['SSSS', 4], 0, function () {
		return this.millisecond() * 10
	})
	addFormatToken(0, ['SSSSS', 5], 0, function () {
		return this.millisecond() * 100
	})
	addFormatToken(0, ['SSSSSS', 6], 0, function () {
		return this.millisecond() * 1000
	})
	addFormatToken(0, ['SSSSSSS', 7], 0, function () {
		return this.millisecond() * 10000
	})
	addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
		return this.millisecond() * 100000
	})
	addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
		return this.millisecond() * 1000000
	})

	// ALIASES

	addUnitAlias('millisecond', 'ms')

	// PRIORITY

	addUnitPriority('millisecond', 16)

	// PARSING

	addRegexToken('S', match1to3, match1)
	addRegexToken('SS', match1to3, match2)
	addRegexToken('SSS', match1to3, match3)

	var token
	for (token = 'SSSS'; token.length <= 9; token += 'S') {
		addRegexToken(token, matchUnsigned)
	}

	function parseMs(input, array) {
		array[MILLISECOND] = toInt(('0.' + input) * 1000)
	}

	for (token = 'S'; token.length <= 9; token += 'S') {
		addParseToken(token, parseMs)
	}
	// MOMENTS

	var getSetMillisecond = makeGetSet('Milliseconds', false)

	// FORMATTING

	addFormatToken('z', 0, 0, 'zoneAbbr')
	addFormatToken('zz', 0, 0, 'zoneName')

	// MOMENTS

	function getZoneAbbr() {
		return this._isUTC ? 'UTC' : ''
	}

	function getZoneName() {
		return this._isUTC ? 'Coordinated Universal Time' : ''
	}

	var proto = Moment.prototype

	proto.add = add
	proto.calendar = calendar$1
	proto.clone = clone
	proto.diff = diff
	proto.endOf = endOf
	proto.format = format
	proto.from = from
	proto.fromNow = fromNow
	proto.to = to
	proto.toNow = toNow
	proto.get = stringGet
	proto.invalidAt = invalidAt
	proto.isAfter = isAfter
	proto.isBefore = isBefore
	proto.isBetween = isBetween
	proto.isSame = isSame
	proto.isSameOrAfter = isSameOrAfter
	proto.isSameOrBefore = isSameOrBefore
	proto.isValid = isValid$2
	proto.lang = lang
	proto.locale = locale
	proto.localeData = localeData
	proto.max = prototypeMax
	proto.min = prototypeMin
	proto.parsingFlags = parsingFlags
	proto.set = stringSet
	proto.startOf = startOf
	proto.subtract = subtract
	proto.toArray = toArray
	proto.toObject = toObject
	proto.toDate = toDate
	proto.toISOString = toISOString
	proto.inspect = inspect
	proto.toJSON = toJSON
	proto.toString = toString
	proto.unix = unix
	proto.valueOf = valueOf
	proto.creationData = creationData
	proto.year = getSetYear
	proto.isLeapYear = getIsLeapYear
	proto.weekYear = getSetWeekYear
	proto.isoWeekYear = getSetISOWeekYear
	proto.quarter = proto.quarters = getSetQuarter
	proto.month = getSetMonth
	proto.daysInMonth = getDaysInMonth
	proto.week = proto.weeks = getSetWeek
	proto.isoWeek = proto.isoWeeks = getSetISOWeek
	proto.weeksInYear = getWeeksInYear
	proto.isoWeeksInYear = getISOWeeksInYear
	proto.date = getSetDayOfMonth
	proto.day = proto.days = getSetDayOfWeek
	proto.weekday = getSetLocaleDayOfWeek
	proto.isoWeekday = getSetISODayOfWeek
	proto.dayOfYear = getSetDayOfYear
	proto.hour = proto.hours = getSetHour
	proto.minute = proto.minutes = getSetMinute
	proto.second = proto.seconds = getSetSecond
	proto.millisecond = proto.milliseconds = getSetMillisecond
	proto.utcOffset = getSetOffset
	proto.utc = setOffsetToUTC
	proto.local = setOffsetToLocal
	proto.parseZone = setOffsetToParsedOffset
	proto.hasAlignedHourOffset = hasAlignedHourOffset
	proto.isDST = isDaylightSavingTime
	proto.isLocal = isLocal
	proto.isUtcOffset = isUtcOffset
	proto.isUtc = isUtc
	proto.isUTC = isUtc
	proto.zoneAbbr = getZoneAbbr
	proto.zoneName = getZoneName
	proto.dates = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth)
	proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth)
	proto.years = deprecate('years accessor is deprecated. Use year instead', getSetYear)
	proto.zone = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone)
	proto.isDSTShifted = deprecate(
		'isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information',
		isDaylightSavingTimeShifted
	)

	function createUnix(input) {
		return createLocal(input * 1000)
	}

	function createInZone() {
		return createLocal.apply(null, arguments).parseZone()
	}

	function preParsePostFormat(string) {
		return string
	}

	var proto$1 = Locale.prototype

	proto$1.calendar = calendar
	proto$1.longDateFormat = longDateFormat
	proto$1.invalidDate = invalidDate
	proto$1.ordinal = ordinal
	proto$1.preparse = preParsePostFormat
	proto$1.postformat = preParsePostFormat
	proto$1.relativeTime = relativeTime
	proto$1.pastFuture = pastFuture
	proto$1.set = set

	proto$1.months = localeMonths
	proto$1.monthsShort = localeMonthsShort
	proto$1.monthsParse = localeMonthsParse
	proto$1.monthsRegex = monthsRegex
	proto$1.monthsShortRegex = monthsShortRegex
	proto$1.week = localeWeek
	proto$1.firstDayOfYear = localeFirstDayOfYear
	proto$1.firstDayOfWeek = localeFirstDayOfWeek

	proto$1.weekdays = localeWeekdays
	proto$1.weekdaysMin = localeWeekdaysMin
	proto$1.weekdaysShort = localeWeekdaysShort
	proto$1.weekdaysParse = localeWeekdaysParse

	proto$1.weekdaysRegex = weekdaysRegex
	proto$1.weekdaysShortRegex = weekdaysShortRegex
	proto$1.weekdaysMinRegex = weekdaysMinRegex

	proto$1.isPM = localeIsPM
	proto$1.meridiem = localeMeridiem

	function get$1(format, index, field, setter) {
		var locale = getLocale()
		var utc = createUTC().set(setter, index)
		return locale[field](utc, format)
	}

	function listMonthsImpl(format, index, field) {
		if (isNumber(format)) {
			index = format
			format = undefined
		}

		format = format || ''

		if (index != null) {
			return get$1(format, index, field, 'month')
		}

		var i
		var out = []
		for (i = 0; i < 12; i++) {
			out[i] = get$1(format, i, field, 'month')
		}
		return out
	}

	// ()
	// (5)
	// (fmt, 5)
	// (fmt)
	// (true)
	// (true, 5)
	// (true, fmt, 5)
	// (true, fmt)
	function listWeekdaysImpl(localeSorted, format, index, field) {
		if (typeof localeSorted === 'boolean') {
			if (isNumber(format)) {
				index = format
				format = undefined
			}

			format = format || ''
		} else {
			format = localeSorted
			index = format
			localeSorted = false

			if (isNumber(format)) {
				index = format
				format = undefined
			}

			format = format || ''
		}

		var locale = getLocale(),
			shift = localeSorted ? locale._week.dow : 0

		if (index != null) {
			return get$1(format, (index + shift) % 7, field, 'day')
		}

		var i
		var out = []
		for (i = 0; i < 7; i++) {
			out[i] = get$1(format, (i + shift) % 7, field, 'day')
		}
		return out
	}

	function listMonths(format, index) {
		return listMonthsImpl(format, index, 'months')
	}

	function listMonthsShort(format, index) {
		return listMonthsImpl(format, index, 'monthsShort')
	}

	function listWeekdays(localeSorted, format, index) {
		return listWeekdaysImpl(localeSorted, format, index, 'weekdays')
	}

	function listWeekdaysShort(localeSorted, format, index) {
		return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort')
	}

	function listWeekdaysMin(localeSorted, format, index) {
		return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin')
	}

	getSetGlobalLocale('en', {
		dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
		ordinal: function (number) {
			var b = number % 10,
				output = toInt((number % 100) / 10) === 1 ? 'th' : b === 1 ? 'st' : b === 2 ? 'nd' : b === 3 ? 'rd' : 'th'
			return number + output
		},
	})

	// Side effect imports

	hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale)
	hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale)

	var mathAbs = Math.abs

	function abs() {
		var data = this._data

		this._milliseconds = mathAbs(this._milliseconds)
		this._days = mathAbs(this._days)
		this._months = mathAbs(this._months)

		data.milliseconds = mathAbs(data.milliseconds)
		data.seconds = mathAbs(data.seconds)
		data.minutes = mathAbs(data.minutes)
		data.hours = mathAbs(data.hours)
		data.months = mathAbs(data.months)
		data.years = mathAbs(data.years)

		return this
	}

	function addSubtract$1(duration, input, value, direction) {
		var other = createDuration(input, value)

		duration._milliseconds += direction * other._milliseconds
		duration._days += direction * other._days
		duration._months += direction * other._months

		return duration._bubble()
	}

	// supports only 2.0-style add(1, 's') or add(duration)
	function add$1(input, value) {
		return addSubtract$1(this, input, value, 1)
	}

	// supports only 2.0-style subtract(1, 's') or subtract(duration)
	function subtract$1(input, value) {
		return addSubtract$1(this, input, value, -1)
	}

	function absCeil(number) {
		if (number < 0) {
			return Math.floor(number)
		} else {
			return Math.ceil(number)
		}
	}

	function bubble() {
		var milliseconds = this._milliseconds
		var days = this._days
		var months = this._months
		var data = this._data
		var seconds, minutes, hours, years, monthsFromDays

		// if we have a mix of positive and negative values, bubble down first
		// check: https://github.com/moment/moment/issues/2166
		if (!((milliseconds >= 0 && days >= 0 && months >= 0) || (milliseconds <= 0 && days <= 0 && months <= 0))) {
			milliseconds += absCeil(monthsToDays(months) + days) * 864e5
			days = 0
			months = 0
		}

		// The following code bubbles up values, see the tests for
		// examples of what that means.
		data.milliseconds = milliseconds % 1000

		seconds = absFloor(milliseconds / 1000)
		data.seconds = seconds % 60

		minutes = absFloor(seconds / 60)
		data.minutes = minutes % 60

		hours = absFloor(minutes / 60)
		data.hours = hours % 24

		days += absFloor(hours / 24)

		// convert days to months
		monthsFromDays = absFloor(daysToMonths(days))
		months += monthsFromDays
		days -= absCeil(monthsToDays(monthsFromDays))

		// 12 months -> 1 year
		years = absFloor(months / 12)
		months %= 12

		data.days = days
		data.months = months
		data.years = years

		return this
	}

	function daysToMonths(days) {
		// 400 years have 146097 days (taking into account leap year rules)
		// 400 years have 12 months === 4800
		return (days * 4800) / 146097
	}

	function monthsToDays(months) {
		// the reverse of daysToMonths
		return (months * 146097) / 4800
	}

	function as(units) {
		if (!this.isValid()) {
			return NaN
		}
		var days
		var months
		var milliseconds = this._milliseconds

		units = normalizeUnits(units)

		if (units === 'month' || units === 'quarter' || units === 'year') {
			days = this._days + milliseconds / 864e5
			months = this._months + daysToMonths(days)
			switch (units) {
				case 'month':
					return months
				case 'quarter':
					return months / 3
				case 'year':
					return months / 12
			}
		} else {
			// handle milliseconds separately because of floating point math errors (issue #1867)
			days = this._days + Math.round(monthsToDays(this._months))
			switch (units) {
				case 'week':
					return days / 7 + milliseconds / 6048e5
				case 'day':
					return days + milliseconds / 864e5
				case 'hour':
					return days * 24 + milliseconds / 36e5
				case 'minute':
					return days * 1440 + milliseconds / 6e4
				case 'second':
					return days * 86400 + milliseconds / 1000
				// Math.floor prevents floating point math errors here
				case 'millisecond':
					return Math.floor(days * 864e5) + milliseconds
				default:
					throw new Error('Unknown unit ' + units)
			}
		}
	}

	// TODO: Use this.as('ms')?
	function valueOf$1() {
		if (!this.isValid()) {
			return NaN
		}
		return this._milliseconds + this._days * 864e5 + (this._months % 12) * 2592e6 + toInt(this._months / 12) * 31536e6
	}

	function makeAs(alias) {
		return function () {
			return this.as(alias)
		}
	}

	var asMilliseconds = makeAs('ms')
	var asSeconds = makeAs('s')
	var asMinutes = makeAs('m')
	var asHours = makeAs('h')
	var asDays = makeAs('d')
	var asWeeks = makeAs('w')
	var asMonths = makeAs('M')
	var asQuarters = makeAs('Q')
	var asYears = makeAs('y')

	function clone$1() {
		return createDuration(this)
	}

	function get$2(units) {
		units = normalizeUnits(units)
		return this.isValid() ? this[units + 's']() : NaN
	}

	function makeGetter(name) {
		return function () {
			return this.isValid() ? this._data[name] : NaN
		}
	}

	var milliseconds = makeGetter('milliseconds')
	var seconds = makeGetter('seconds')
	var minutes = makeGetter('minutes')
	var hours = makeGetter('hours')
	var days = makeGetter('days')
	var months = makeGetter('months')
	var years = makeGetter('years')

	function weeks() {
		return absFloor(this.days() / 7)
	}

	var round = Math.round
	var thresholds = {
		ss: 44, // a few seconds to seconds
		s: 45, // seconds to minute
		m: 45, // minutes to hour
		h: 22, // hours to day
		d: 26, // days to month
		M: 11, // months to year
	}

	// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
	function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
		return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture)
	}

	function relativeTime$1(posNegDuration, withoutSuffix, locale) {
		var duration = createDuration(posNegDuration).abs()
		var seconds = round(duration.as('s'))
		var minutes = round(duration.as('m'))
		var hours = round(duration.as('h'))
		var days = round(duration.as('d'))
		var months = round(duration.as('M'))
		var years = round(duration.as('y'))

		var a = (seconds <= thresholds.ss && ['s', seconds]) ||
			(seconds < thresholds.s && ['ss', seconds]) ||
			(minutes <= 1 && ['m']) ||
			(minutes < thresholds.m && ['mm', minutes]) ||
			(hours <= 1 && ['h']) ||
			(hours < thresholds.h && ['hh', hours]) ||
			(days <= 1 && ['d']) ||
			(days < thresholds.d && ['dd', days]) ||
			(months <= 1 && ['M']) ||
			(months < thresholds.M && ['MM', months]) ||
			(years <= 1 && ['y']) || ['yy', years]

		a[2] = withoutSuffix
		a[3] = +posNegDuration > 0
		a[4] = locale
		return substituteTimeAgo.apply(null, a)
	}

	// This function allows you to set the rounding function for relative time strings
	function getSetRelativeTimeRounding(roundingFunction) {
		if (roundingFunction === undefined) {
			return round
		}
		if (typeof roundingFunction === 'function') {
			round = roundingFunction
			return true
		}
		return false
	}

	// This function allows you to set a threshold for relative time strings
	function getSetRelativeTimeThreshold(threshold, limit) {
		if (thresholds[threshold] === undefined) {
			return false
		}
		if (limit === undefined) {
			return thresholds[threshold]
		}
		thresholds[threshold] = limit
		if (threshold === 's') {
			thresholds.ss = limit - 1
		}
		return true
	}

	function humanize(withSuffix) {
		if (!this.isValid()) {
			return this.localeData().invalidDate()
		}

		var locale = this.localeData()
		var output = relativeTime$1(this, !withSuffix, locale)

		if (withSuffix) {
			output = locale.pastFuture(+this, output)
		}

		return locale.postformat(output)
	}

	var abs$1 = Math.abs

	function sign(x) {
		return (x > 0) - (x < 0) || +x
	}

	function toISOString$1() {
		// for ISO strings we do not use the normal bubbling rules:
		//  * milliseconds bubble up until they become hours
		//  * days do not bubble at all
		//  * months bubble up until they become years
		// This is because there is no context-free conversion between hours and days
		// (think of clock changes)
		// and also not between days and months (28-31 days per month)
		if (!this.isValid()) {
			return this.localeData().invalidDate()
		}

		var seconds = abs$1(this._milliseconds) / 1000
		var days = abs$1(this._days)
		var months = abs$1(this._months)
		var minutes, hours, years

		// 3600 seconds -> 60 minutes -> 1 hour
		minutes = absFloor(seconds / 60)
		hours = absFloor(minutes / 60)
		seconds %= 60
		minutes %= 60

		// 12 months -> 1 year
		years = absFloor(months / 12)
		months %= 12

		// inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
		var Y = years
		var M = months
		var D = days
		var h = hours
		var m = minutes
		var s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : ''
		var total = this.asSeconds()

		if (!total) {
			// this is the same as C#'s (Noda) and python (isodate)...
			// but not other JS (goog.date)
			return 'P0D'
		}

		var totalSign = total < 0 ? '-' : ''
		var ymSign = sign(this._months) !== sign(total) ? '-' : ''
		var daysSign = sign(this._days) !== sign(total) ? '-' : ''
		var hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : ''

		return (
			totalSign +
			'P' +
			(Y ? ymSign + Y + 'Y' : '') +
			(M ? ymSign + M + 'M' : '') +
			(D ? daysSign + D + 'D' : '') +
			(h || m || s ? 'T' : '') +
			(h ? hmsSign + h + 'H' : '') +
			(m ? hmsSign + m + 'M' : '') +
			(s ? hmsSign + s + 'S' : '')
		)
	}

	var proto$2 = Duration.prototype

	proto$2.isValid = isValid$1
	proto$2.abs = abs
	proto$2.add = add$1
	proto$2.subtract = subtract$1
	proto$2.as = as
	proto$2.asMilliseconds = asMilliseconds
	proto$2.asSeconds = asSeconds
	proto$2.asMinutes = asMinutes
	proto$2.asHours = asHours
	proto$2.asDays = asDays
	proto$2.asWeeks = asWeeks
	proto$2.asMonths = asMonths
	proto$2.asQuarters = asQuarters
	proto$2.asYears = asYears
	proto$2.valueOf = valueOf$1
	proto$2._bubble = bubble
	proto$2.clone = clone$1
	proto$2.get = get$2
	proto$2.milliseconds = milliseconds
	proto$2.seconds = seconds
	proto$2.minutes = minutes
	proto$2.hours = hours
	proto$2.days = days
	proto$2.weeks = weeks
	proto$2.months = months
	proto$2.years = years
	proto$2.humanize = humanize
	proto$2.toISOString = toISOString$1
	proto$2.toString = toISOString$1
	proto$2.toJSON = toISOString$1
	proto$2.locale = locale
	proto$2.localeData = localeData

	proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1)
	proto$2.lang = lang

	// Side effect imports

	// FORMATTING

	addFormatToken('X', 0, 0, 'unix')
	addFormatToken('x', 0, 0, 'valueOf')

	// PARSING

	addRegexToken('x', matchSigned)
	addRegexToken('X', matchTimestamp)
	addParseToken('X', function (input, array, config) {
		config._d = new Date(parseFloat(input, 10) * 1000)
	})
	addParseToken('x', function (input, array, config) {
		config._d = new Date(toInt(input))
	})

	// Side effect imports

	hooks.version = '2.24.0'

	setHookCallback(createLocal)

	hooks.fn = proto
	hooks.min = min
	hooks.max = max
	hooks.now = now
	hooks.utc = createUTC
	hooks.unix = createUnix
	hooks.months = listMonths
	hooks.isDate = isDate
	hooks.locale = getSetGlobalLocale
	hooks.invalid = createInvalid
	hooks.duration = createDuration
	hooks.isMoment = isMoment
	hooks.weekdays = listWeekdays
	hooks.parseZone = createInZone
	hooks.localeData = getLocale
	hooks.isDuration = isDuration
	hooks.monthsShort = listMonthsShort
	hooks.weekdaysMin = listWeekdaysMin
	hooks.defineLocale = defineLocale
	hooks.updateLocale = updateLocale
	hooks.locales = listLocales
	hooks.weekdaysShort = listWeekdaysShort
	hooks.normalizeUnits = normalizeUnits
	hooks.relativeTimeRounding = getSetRelativeTimeRounding
	hooks.relativeTimeThreshold = getSetRelativeTimeThreshold
	hooks.calendarFormat = getCalendarFormat
	hooks.prototype = proto

	// currently HTML5 input type only supports 24-hour formats
	hooks.HTML5_FMT = {
		DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm', // <input type="datetime-local" />
		DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss', // <input type="datetime-local" step="1" />
		DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS', // <input type="datetime-local" step="0.001" />
		DATE: 'YYYY-MM-DD', // <input type="date" />
		TIME: 'HH:mm', // <input type="time" />
		TIME_SECONDS: 'HH:mm:ss', // <input type="time" step="1" />
		TIME_MS: 'HH:mm:ss.SSS', // <input type="time" step="0.001" />
		WEEK: 'GGGG-[W]WW', // <input type="week" />
		MONTH: 'YYYY-MM', // <input type="month" />
	}

	return hooks
})
